Critical Firewall Flaws, Banking Trojans Rented, Weaponized PDF, Token Theft + 26 More Stories – CYBERDEFENSA.MX

Some attacks take real skill. Others just need someone to leave a door open. This week has both. Exposed passwords, old bugs still getting exploited, and trusted software doing things it shouldn’t.

There’s a strange mix of clever tricks and careless mistakes. Hackers are borrowing trust from familiar apps, websites, and AI tools. Some are using AI to speed things up. Others are leaving their own attack files exposed. Not exactly careful work.

Different stories, familiar weak spots. Here’s what showed up this week.

The threats change every week. Subscribe, and we’ll alert you when each new ThreatsDay Bulletin is out.

  1. PHP2Shell attacks persist

    WordPress security company Wordefence said it’s not aware of any WordPress site compromised through PHP2Shell (CVE-2026-109618 and CVE-2026-109619) as of October 28, 2026. «We continue to see PHP2Shell-related requests across the more than 5 million sites we protect,» it said. «Those requests show ongoing scanning and exploitation attempts; they do not show whether an attempt succeeded. Our site-cleaning and incident response teams have not handled a WordPress compromise attributed to these vulnerabilities.»

That’s the week’s mess. Some attacks were clever, some were painfully simple, and a few attackers made life easier for the people investigating them. The common problem? Too much trust in things nobody was watching closely.

AI is adding new tricks, but the old ones aren’t going anywhere. Stolen credentials, weak access controls, and forgotten bugs still get plenty of work done. New tools, familiar mistakes.

The useful part is knowing where those mistakes keep showing up. That’s usually where the next problem starts.

200 Android Flaws, Browser-Built Phishing, 119K Scam Shops + 23 More Stories – CYBERDEFENSA.MX

A lot of this week’s security news has the same awkward answer to one question: “Why was that allowed to work?”

An extension asks for access and takes too much. A trusted service becomes part of a phishing chain. An old bug still gets results. An exposed system stays exposed. A package looks useful right up until it isn’t. Different stories, same basic problem: the path in was often already there.

Nothing here needed magic. Mostly access, trust, weak edges, and someone willing to keep poking. That’s the week.

The threats change every week. Subscribe, and we’ll alert you when each new ThreatsDay Bulletin is out.

The lesson this week is smaller than “patch faster.” Stop giving ordinary things unlimited trust. Extensions, packages, redirects, sessions, AI tools, exposed services — most of the trouble begins when something familiar is allowed to do too much.

Security still breaks at the boring handoffs: what gets access, what stays exposed, what gets inherited, and what nobody checks twice. Attackers do not need every door open. One lazy hinge is enough. That is probably the part worth remembering after the headlines disappear.

AI-Powered Hacking, 370 Chrome Flaws, SonicWall Attacks, DNS Hijacking + 22 More Stories – CYBERDEFENSA.MX

A lot of security still comes down to trusting the wrong screen.

This week, that screen might be a login page, an install guide, a recruiter call, or a familiar service behaving slightly wrong. Behind it: reused credentials, exposed systems, quiet loaders, abused trust, and exploit paths that should have been harder.

Some defenses improved. The loose parts still got found first. Anyway, here’s the mess.

The threats change every week. Subscribe, and we’ll alert you when each new ThreatsDay Bulletin is out.

  1. Phishing delivers XWorm

    A cybercrime group known as xplogs22 has been observed targeting Russia and other CIS countries with phishing emails that deliver Xworm. The group, per F6, is believed to have been active since November 2023. Prior attacks mounted by the threat actors leveraged Formbook and Snake Keylogger, before switching to XWorm around July 2025. In recent months, Russian customers of the banking sector have also been targeted by an Android trojan called LunaSpy as part of social engineering attacks. LunaSpy can capture camera streams, record audio and the screen, and collect sensitive data. The malware is disguised as an antivirus application to evade detection.

Most failures stay quiet until someone relies on them.

A login works. A partner is trusted. A tool behaves as expected. Then one assumption turns out to be doing all the security work.

That is the part worth checking before next week finds it first.

Linux Kernel Flaws, AI Malware Tricks, Turla Backdoor, Infostealers and More – CYBERDEFENSA.MX

This week was a reminder that attackers do not always need big tricks. One small mistake, one old access path, one missed patch, and suddenly the door is open.

The noise is not all noise, either. Forums are talking, researchers are finding easy cracks, and defenders have more cleanup waiting.

Here’s the full Monday recap.

⚡ Threat of the Week

New DirtyClone Linux Kernel Flaw Lets Local Users Gain Root via Cloned Packets — Cybersecurity researchers detailed a new variant of the Dirty Frag Linux kernel flaw. Called DirtyClone (aka CVE-2026-43503), it allows local users to gain root privileges via cloned packets. The exploit works successfully on Debian, Ubuntu, and Fedora systems with default namespace configurations. «Any local user on a server or device running a vulnerable kernel who holds or can acquire the CAP_NET_ADMIN capability (frequently obtainable via unprivileged user namespaces) [is exploitable],» JFrog said. «This poses the highest risk to multi-tenant cloud environments, Kubernetes clusters, and containerized workloads where user namespaces are enabled, or privileged containers are deployed.»

🔔 Top News

  • Critical PTC Windchill PDMlink and PTC FlexPLM Flaw Exploited — A critical remote code execution vulnerability impacting PTC Windchill PDMlink and PTC FlexPLM enterprise Product Data Management (PDM) and Product Lifecycle Management (PLM) software has come under active exploitation in the wild to deploy JSP web shells on susceptible systems. The vulnerability, tracked as CVE-2026-12569, is a case of improper input validation that could allow an attacker to execute arbitrary code by sending a malicious request to the network. Patches for the vulnerability have been released.
  • OpenAI Previews GPT-5.6 Sol, Terra, and Luna — OpenAI officially unveiled GPT-5.6 Sol, Terra, and Luna, with Sol described as the most capable model yet for cybersecurity. The models are being released in a staggered manner with approval from the U.S. government. The release came days after the company released an improved version of its GPT‑5.5‑Cyber model to trusted defenders as part of the Daybreak initiative and launched a new project called Patch the Planet in collaboration with Trail of Bits to help secure open-source projects. OpenAI has also warned about the dual-use nature of the technology, acknowledging that the same capability that helps a red teamer find a zero-day can also assist a bad actor in exploiting one, and that it will prioritize patching jailbreak techniques against the model. In addition, it has framed the effort as getting the tools in the hands of more defenders before attackers gain the same edge. Much of the concern surrounding the frontier models stems from the fact that artificial intelligence can now identify existing bugs within codebases and work towards creating exploits for them. While the automation of cybercrime is not new, these tools undoubtedly have the potential to further lower the barrier to entry for bad actors.
  • New Gaslight macOS Malware Discovered — A newly discovered macOS malware dubbed Gaslight is designed to confuse AI-assisted malware analysis tools through embedded prompt injection strings and fake debugging data within the executable. With cybersecurity researchers using AI-powered tools to assist with malware analysis and reverse engineering, the malware attempts to gaslight such tools into thinking there is some issue, potentially causing them to abort, truncate, or refuse an analysis of the artifact. Gaslight has been attributed with high confidence to a North Korean-linked threat actor. The malware itself is a Rust binary with backdoor and information-stealing functionality, enabling the operator to gain a persistent foothold over the infected host. The findings highlight how threat actors are experimenting with anti-analysis methods designed specifically to bypass AI-assisted security platforms.
  • Turla Uses STOCKSTAY Backdoor in Ukraine Attacks — The Russian state-sponsored threat actor known as Turla has leveraged a previously undocumented .NET backdoor called STOCKSTAY in attacks targeting government and military organizations in Ukraine, and entities that have an interest in Italian foreign policy. STOCKSTAY shares significant code and functional overlaps with Kazuar, a staple implant put to use by the adversary since 2017. Suspected development activity of malware dates back to December 2022.
  • Amadey, StealC Malware Operations Disrupted in Operation Endgame — A coordinated law enforcement operation, in partnership with private sector companies, dismantled criminal infrastructure powering Amadey and StealC. According to Europol, the operation led to the disruption of 326 servers and 142 domains, the identification of more than €41 million ($47 million) in cryptocurrency linked to criminal activity, and the recovery of approximately 27 million credentials stolen from over 385k compromised systems. Amadey and StealC are sold to cybercriminals under a malware-as-a-service (MaaS) model. Microsoft said criminals use Amadey to gain an initial foothold on victim devices to deploy additional malware, such as StealC, which then steals credentials, cryptocurrency wallets, and other sensitive information that can later be sold or leveraged in follow-on attacks. The two malware families were linked to more than 140,000 infected devices during the first two weeks of May 2026 alone. That said, no arrests were announced as part of the operation.

‎️‍🔥 Trending CVEs

Bugs drop weekly, and the gap between a patch and an exploit is shrinking fast. These are the heavy hitters for the week: high-severity, widely used, or already being poked at in the wild.

Check the list, patch what you have, and hit the ones marked urgent first — CVE-2026-47729 aka Squidbleed (Squid), CVE-2026-12957 (Amazon Q Developer), CVE-2026-12569 (PTC Windchill PDMlink and PTC FlexPLM), CVE-2026-43503 aka DirtyClone, CVE-2026-46331 aka pedit COW (Linux Kernel), CVE-2026-30040, CVE-2026-30041 (FastStone Image Viewer), CVE-2026-45585 (Microsoft WinRE), CVE-2026-8461 aka PixelSmash (FFmpeg), CVE-2026-55200 (libssh2), CVE‑2026‑20971 (Samsung KNOX kernel), CVE-2026-10086, CVE-2026-10712, CVE-2026-12053 (GitLab CE and EE), CVE-2026-13028, CVE-2026-13032, CVE-2026-13033, CVE-2026-13038 (Google Chrome), CVE-2026-53605 (Reachy Mini Wireless image), CVE-2026-13136, CVE-2025-15660, CVE-2026-13135 (Synology MailPlus Server), CVE-2026-11374 (ADSelfService Plus, RecoveryManager Plus, M365 Manager Plus and ADAudit Plus), and a critical Infoblox NIOS privilege escalation vulnerability (no CVE).

🎥 Cybersecurity Webinars

  • Stop AI-Driven Cyberattacks Before They Stop Your Business → Hackers are now using AI to launch cyberattacks at machine speed. If your defenses are built for human-speed threats, you are at risk. Join this webinar to get a step-by-step blueprint to fight back. Learn exactly how to block AI-driven attacks and protect your company before a crisis hits.
  • When AI Goes Rogue: How to Secure the New Cyber Attack Surface → As companies rush to adopt AI, hackers are turning these tools into a massive liability by hijacking AI agents and leaking trade secrets. Join this urgent webinar to see exactly how attackers weaponize AI against businesses. You’ll get a practical blueprint to lock down your setups, fix risky configurations, and stop your own tech from going rogue.
  • Building at Machine Speed: How to Secure AI Software Delivery → AI tools are generating code faster than security teams can review it, introducing hidden risks into software pipelines. Join this webinar to learn how to catch vulnerabilities and govern AI risk without slowing down development. You’ll get a practical roadmap to protect your software supply chain and scale AI engineering safely.

📰 Around the Cyber World

  • China’s New Zhipu AI Reportedly Matches Claude Mythos in Vulnerability Discovery — The Wall Street Journal reported that a new model released by China’s Zhipu AI, GLM-5.2, matches the performance of Anthropic Mythos when it comes to finding vulnerabilities, narrowing the gap between top U.S. models and those developed by Chinese companies. The ability of AI systems to autonomously find security defects in software has created new urgency to efforts that entail the use of models to quickly close them before they can be exploited by bad actors. There are also worries that these models, in the wrong hands, can become potential enablers of cyber warfare. The Trump administration has called for the creation of a framework that grants the federal government the ability to evaluate AI models’ capabilities and determine which qualify as «covered frontier models,» a designation for AI systems with advanced cyber capabilities.
  • Indirect Prompt Injection in Agentic Coding Tools — Mozilla’s Zero Day Investigative Network (0DIN) characterized indirect prompt injection as a «very real and serious attack vector that can result in catastrophic damage, much of which will be irreversible.» In the case of agentic IDEs and coding agents, they can request access to various tools, which, once approved, can pave the way for code execution, file system operations, and network calls. Specifically, an attacker can obtain code execution using a seemingly harmless repository by chaining trusted setup instructions, routine error handling, and automated agent behavior. The attacker-controlled repository does not even have to contain any malicious code. Instead, it’s fetched at runtime from a DNS TXT record by framing it as an essential step during the installation phase when a developer copies the repository link and instructs the agent to get it running. «In short, agentic coding tools have access to everything they need for this: private data, including environment variables, credentials, API keys, and local configuration files,» 0DIN said. «Untrusted content, such as repositories, documentation, and error messages from recently installed packages, can inject malicious models to steal this data.»
  • New KuinaExtractor Rust Infostealer Spotted — A new Rust-based information stealer called KuinaExtractor comes fitted with capabilities to harvest web browser data, crypto wallets and credentials for services such as Roblox, Steam and Discord. Said to be in active development since December 2025, the stealer also includes a Chrome app-bound encryption (ABE) bypass. In parallel, the malware developer worked on two short-lived projects known as KuinaCookieExtractor and Zenith C2 before they were abandoned. KuinaCookieExtractor goes beyond browser cookies to include Roblox and Steam sessions, Minecraft and FileZilla logins, Telegram tdata and Discord tokens, and exfiltrates over a Discord webhook rather than Telegram.
  • New LokiBot Campaign Surfaces After a Hiatus — A new email phishing campaign has been observed delivering LokiBot via a JavaScript attachment. Once launched, the script triggers the execution of a PowerShell loader that runs a .NET injector payload that deploys the LokiBot malware. LokiBot is capable of harvesting credentials from password managers like 1Password, Enpass, and KeePass, and contacts an external server to receive and execute commands.
  • Phishing Campaign Drops Malicious Chrome Extension — Invoice-themed email phishing lures written in Italian are being used to launch JavaScript attachments masquerading as PDF documents. «The most interesting part of this infection was not the initial JavaScript. The malware installed a malicious Google Chrome extension and paired it with a Native Messaging Host,» D3 Lab said. «This combination allowed code running inside Chrome to request PowerShell commands on the Windows system.»
  • Time as an Attack Surface — New research from NCC Group has argued the need for treating time as a «first‑class attack surface,» stating clock drift, time synchronisation failures, and deliberate oscillator manipulation can be exploited to undermine cryptography, authentication, industrial automation, and safety systems. «The risk is amplified by broader technological trends,» NCC Group’s Andy Davis said. «Cloud computing, containerisation, and virtual machines abstract time away from physical hardware, placing it under the control of hypervisors and orchestration layers. At the same time, Industrial Control Systems, IoT devices, and safety-critical platforms increasingly rely on low‑cost oscillators and commodity components that are vulnerable to environmental influence and physical manipulation. Systems that once relied on isolated, deterministic timing sources are now interconnected, synchronised, and exposed.»
  • Threat actors Exploit Xiongmai DVR Flaw to Deliver Proxy SDK — Threat actors have been exploiting CVE-2024-3765, a vulnerability in Xiongmai DVR, to deploy commercial residential proxy SDKs using a Mirai botnet-derived HTTP downloader. «All DDoS and scanning capability has been stripped,» the Nokia Deepfield Emergency Response Team (ERT) said. «What remains is a minimal HTTP client and an embedded userspace ELF loader – Mirai reduced to a delivery truck.» The main stager installed following a successful compromise deploys a proxy binary called PacketSDK, which is part of the IPIDEA residential proxy network disrupted by Google earlier this year. The stager also contains a remote code execution backdoor that polls an external server for updates every 2 minutes.
  • Nation-State Targeting of Water Systems — DomainTools warned that water and wastewater infrastructure have become strategic pressure points for state and state-aligned actors from China, Iran, and Russia. «The combination of chronic underinvestment and weak baseline operational technology (OT) security makes many of these critical systems easy to compromise,» the company said. «Such intrusions can have both physical and psychological impact, and disruptions often affect civilian life, public health, and trust in government.»
  • Anthropic Accuses Alibaba of Obtaining Illicit Access to Claude — Anthropic has accused the Chinese company Alibaba of what it described as the «largest campaign to illicitly extract Claude’s capabilities.» The attacks occurred between April 22 and June 5, 2026, when «operators affiliated with Alibaba and Alibaba Qwen, Alibaba’s AI lab,» allegedly generated «more than 28.8 million exchanges with Claude through almost 25,000 fraudulent accounts,» per Anthropic. The distillation campaign targeted its capabilities, such as agentic reasoning, software engineering, and long-horizon tasks, while evading detection using obfuscation techniques and proxy networks.
  • Linux Foundation Unveils Akrites and OSERA — The Linux Foundation has announced Akrites as a coordinated effort to address and disclose vulnerabilities in critical open-source software as AI accelerates both the scale and speed of vulnerability discovery. «The initiative provides a single, trusted place to coordinate, remediate, and disclose, with a shared SIRT [Security Incident Response Team] serving as a predictable partner for maintainers rather than a flood of uncoordinated reports,» the foundation said. The initiative also plans to work with critical infrastructure operators to help deploy fixes before in-the-wild exploitation. The Linux Foundation has also announced its intent to form an Open Source Enterprise Resiliency Alliance (OSERA) that aims to strengthen the open-source components that underpin the financial services sector through a vendor-neutral, upstream-aware approach. «OSERA complements the recently announced Akrites, the cross-industry effort enabling coordinated disclosure and upstreaming,» the foundation said. «As financial-services downstream complement to Akrites, OSERA will collaborate with Akrites in the upstreaming process and, together with the Open Source Security Foundation, to represent the voice of the industry in defining remediation standards.»
  • Microsoft Extends Windows 10 Consumer Extended Security Updates by a Year — Microsoft quietly extended the Extended Security Updates (ESU) program for Windows 10 consumers by a year, letting eligible users get updates through October 12, 2027. To enroll in the consumer Windows 10 ESU program, devices need to be running Windows 10, version 22H2 Home, Professional, Pro Education, or Workstations edition and cannot be offered for devices in kiosk mode or those that are joined to an Active Directory domain or Microsoft Entra and/or enrolled in a Mobile Device Management (MDM) solution.
  • Microsoft’s Secure Boot Certificates Have Expired — In related Microsoft news, the certificates that manage UEFI Secure Boot trust – namely, Microsoft Corporation KEK CA 2011, Microsoft UEFI CA 2011, and Microsoft UEFI CA 2011 — expired on June 24 and 27 2026. A third certificate, Microsoft Windows Production PCA 2011, will expire on October 19, 2026. «Many Windows PCs manufactured since 2024 already have the updated 2023 certificates,» Microsoft said. «For the remaining devices, Microsoft is delivering new Secure Boot certificates through Windows monthly updates, with partner original equipment manufacturers (OEMs) making firmware updates available to help ensure compatibility.» Google Cloud has also released guidance on how to update Compute Engine Shielded VM instances to trust the updated Microsoft Secure Boot certificates for UEFI Secure Boot. To apply Secure Boot certificate updates for Linux on Azure virtual machines, it’s recommended to follow the actions outlined by Microsoft here. Separately, Linux users are advised to update their shims to the latest versions signed by the new key. It’s important to note that devices that haven’t received the newer 2023 certificates will continue to function normally, and standard Windows updates will continue to install. However, these devices will no longer receive new security protections for the early boot process, including updates to Windows Boot Manager, Secure Boot databases, revocation lists, or mitigations for newly discovered boot-level vulnerabilities.

  • Fake OpenAI Organization Invites Used in New Poisoned Tenant Campaign
    — Phishing emails are being sent from threat actor-controlled ChatGPT tenants, inviting recipients to join an organization with the likely goal of harvesting sensitive information shared in the AI chatbot. «The emails came from OpenAI’s legitimate notification address (noreply@tm.openai.com), passed all standard email authentication checks, and referenced our company by name,» Push Security said. «They looked exactly like a routine organizational invitation because, technically, they were one.» The development comes as threat actors are abusing AI chatbot chat sharing functionality to distribute pages containing malicious instructions, turning them into malware delivery platforms. «The attacker has used ChatGPT’s code rendering feature to build a fully designed fake page that mimics a ChatGPT service disruption, redirecting victims to a convincing clone of ChatGPT’s download page that delivers a malicious executable,» Push Security noted. The activity has been codenamed LLMShare.

🔧 Cybersecurity Tools

  • Sulla → It is an open-source security tool by Praetorian that scans internal network SMB file shares to find exposed credentials and sensitive data. Operating as a fast, low-noise static binary, it maps Active Directory environments and uses multi-layered filtering with the Titus engine to perform in-memory analysis for cloud keys, passwords, and tokens. It outputs structured, real-time results to help security teams identify and remediate internal data exposure before it can be exploited.
  • Karna → It is a Web Application Firewall (WAF) module specifically engineered for the Kong Gateway to provide modern, scalable security for web applications. By integrating directly into the Kong ecosystem, it allows organizations to enforce fine-grained security policies and filter malicious traffic at the gateway layer, ensuring that protection is applied consistently across distributed services without adding significant latency.

Disclaimer: This is strictly for research and learning. It hasn’t been through a formal security audit, so don’t just blindly drop it into production. Read the code, break it in a sandbox first, and make sure whatever you’re doing stays on the right side of the law.

Conclusion

This week, keep it simple. Break the small thing, find the forgotten access, wait for someone to say they meant to patch it.

No genius required. Just old mistakes with fresh damage. Shut the door. Check the locks.

Linux Flaws, Defender 0-Days, Router Botnets, and Supply Chain Chaos – CYBERDEFENSA.MX

Monday recap. Same mess, new week.

A sketchy dev tool got people pwned, old bugs came back from the dead, and security products somehow needed protecting from themselves. A bunch of companies spent the week checking old boxes and forgotten servers they should’ve patched years ago. Good times.

Phishing crews are getting smarter too – less obvious scam junk, more targeted stuff that actually looks real. Meanwhile, botnets are grabbing anything exposed to the internet like it’s free candy. The Internet’s still a dumpster fire.

Let’s get into it.

⚡ Threat of the Week

GitHub Breached via Nx Console VS Code Extension—GitHub officially confirmed that the breach of its internal repositories was the result of a compromise of an employee device involving a poisoned version of the Nx Console Microsoft Visual Studio Code (VS Code) extension. The attack is said to have allowed the threat actor, a cybercriminal group known as TeamPCP, to exfiltrate about 3,800 repositories. GitHub said it has taken steps to contain the incident and rotated critical secrets, adding it’s continuing to monitor the situation for follow-on activity. The Nx team revealed that the extension, nrwl.angular-console, was breached after one of its developers’ systems was hacked in the wake of the recent TanStack supply chain attack. Other companies that were impacted by the TanStack compromise include OpenAI, Mistral AI, and Grafana Labs. Grafana Labs was also the target of an extortion attempt, but the company said it refused to pay the hackers who had threatened to release the company’s codebase. The incidents are just some examples of the long tail of downstream victims emerging from the Mini Shai-Hulud campaign. This, coupled with TeamPCP’s public release of the Shai-Hulud code, marks a significant evolution in software supply chain threats, as it gives attackers a ready-made blueprint for fleshing out similar worms targeting open-source repositories and developer environments.

🔔 Top News

  • Microsoft Took Down Fox Tempest—Microsoft has cracked down on Fox Tempest, a cyber threat actor that fueled Rhysida ransomware attacks and other infections involving Oyster, Lumma Stealer, and Vidar. The group operates upstream in the malware and ransomware supply chain, acting as an enabler and providing tools for other threat actors to carry out attacks. This included a fraudulent code-signing service that let cybercriminals deploy malware «through the front door» without being detected. While bad actors have been known to resell code-signing certificates for at least a decade, Fox Tempest’s operation stood out because it provided a scalable service for extortion, phishing, SEO poisoning, or malware-laced advertising.
  • 9-Year-Old Linux Kernel Flaw Enables Root Command Execution—A new vulnerability disclosed in the Linux kernel remained undetected for nine years. The vulnerability, tracked as CVE-2026-46333 (CVSS score: 5.5), is a case of improper privilege management that could permit an unprivileged local user to disclose sensitive files and execute arbitrary commands as root on default installations of several major distributions like Debian, Fedora, and Ubuntu. The issue was introduced in November 2016.
  • Microsoft Warned of Two Actively Exploited Defender Vulnerabilities—Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender have come under active exploitation in the wild. While CVE-2026-41091 could allow an attacker to gain SYSTEM privileges, CVE-2026-45498 relates to a case of denial-of-service. Although Microsoft has not formally confirmed, the vulnerability descriptions for CVE-2026-41091 and CVE-2026-45498 overlap with those of RedSun and UnDefend, two Defender zero-days that were disclosed by Chaotic Eclipse (aka Nightmare-Eclipse) last month.
  • Newly Disclosed Drupal Core Flaw Under Attack—A critical security flaw impacting Drupal Core has come under active exploitation within days of public disclosure. The vulnerability in question is CVE-2026-9082 (CVSS score: 6.5), an SQL injection vulnerability affecting all supported versions of Drupal Core. Drupal acknowledged that «exploit attempts are now being detected in the wild.» Thales-owned Imperva said it has observed over 15,000 attack attempts targeting almost 6,000 individual sites across 65 countries.
  • Claude Mythos AI Finds 10K High-Severity Flaws in Popular Software—Anthropic revealed that Project Glasswing has helped uncover more than 10,000 high- or critical-severity vulnerabilities across some of the most «systemically» important software across the world since the cybersecurity initiative went live last month. Of these vulnerabilities, 6,202 have been classified as high- or critical-severity flaws impacting more than 1,000 open-source projects. Subsequent analysis of these vulnerability candidates has identified that 1,726 are valid true positives. As many as 1,094 flaws are assessed to be either high- or critical-severity. In total, these efforts have led to 97 findings being patched upstream and 88 advisories being issued.
  • Cisco Patched CVSS 10.0 Secure Workload Flaw—Cisco rolled out updates for a maximum-severity security flaw impacting Secure Workload that could allow an unauthenticated, remote attacker to access sensitive data. Tracked as CVE-2026-20223 (CVSS score: 10.0), the vulnerability arises from insufficient validation and authentication when accessing REST API endpoints. «An attacker could exploit this vulnerability if they are able to send a crafted API request to an affected endpoint,» Cisco said. «A successful exploit could allow the attacker to read sensitive information and make configuration changes across tenant boundaries with the privileges of the Site Admin user.»
  • Microsoft Released Mitigations for YellowKey—Microsoft released a mitigation for a BitLocker bypass vulnerability named YellowKey following its public disclosure last week. The zero-day flaw, now tracked as CVE-2026-45585, carries a CVSS score of 6.8. It has been described as a BitLocker security feature bypass. The issue impacts Windows 11 version 26H1 for x64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows Server 2025, and Windows Server 2025 (Server Core installation). Microsoft noted that successful exploitation could permit an attacker with physical access to sidestep the BitLocker Device Encryption feature on the system storage device and gain access to encrypted data.

🔥 Trending CVEs

Bugs drop weekly, and the gap between a patch and an exploit is shrinking fast. These are the heavy hitters for the week: high-severity, widely used, or already being poked at in the wild.

Check the list, patch what you have, and hit the ones marked urgent first — CVE-2026-48172 (LiteSpeed User-End cPanel Plugin), CVE-2026-34926 (Trend Micro Apex One), CVE-2026-20223 (Cisco Secure Workload), CVE-2026-41091, CVE-2026-45498, CVE-2026-45584 (Microsoft Defender), CVE-2026-46333 (Linux Kernel), CVE-2026-9082 (Drupal Core), CVE-2026-45585 (Microsoft Windows BitLocker), CVE-2026-2743 (SEPPMail), CVE-2026-7301, CVE-2026-7302, CVE-2026-7304 (SGLang), CVE-2026-29205 (cPanel), CVE-2026-8178 (Amazon Redshift JDBC driver), CVE-2026-8053 (MongoDB), CVE-2026-45829 aka ChromaToast (ChromaDB), CVE-2026-8153 (Universal Robots PolyScope 5), CVE-2026-3102 (ExifTool), CVE-2026-9110, CVE-2026-9111, from CVE-2026-8511 through CVE-2026-8522 (Google Chrome), CVE-2026-45434 (Apache OFBiz), CVE-2026-33000, CVE-2026-34908, CVE-2026-34909, CVE-2026-34910, CVE-2026-34911 (UniFi OS), CVE-2026-45401 (Open WebUI), CVE-2026-9256, CVE‑2026‑8711 (F5 NGINX Plus and NGINX Open Source), CVE-2026-20239 (Splunk Enterprise and Splunk Cloud Platform), CVE-2026-46376 (FreePBX), CVE‑2026‑6637 (PostgreSQL), and CVE-2026-35194 (Apache Flink).

🎥 Cybersecurity Webinars

  • Learn How Attackers Use AI to Supercharge DDoS Efficiency (and How to Stop It) → Adversaries are weaponizing AI to exploit network blind spots, auto-generate evasion scripts, and bypass traditional defenses with surgical precision. This webinar bridges the gap between AI-driven exploitation and cloud resilience, offering data-driven insights into how attackers maximize DDoS success rates. Join us to move beyond theory, leverage AI for non-disruptive security testing (CTEM), and transition your team from reactive mitigation to automated, continuous resilience.
  • Beyond the Zero-Day: Hunting for Threats That Don’t Need an Exploit → Zero-day exploits are no longer the ultimate metric of cyber risk. Today, sophisticated adversaries bypass traditional defenses entirely by leveraging identity flaws, living-off-the-land techniques, and AI automation that don’t rely on unpatched software. This session moves beyond the zero-day obsession to expose how attackers operationalize modern post-compromise tactics—and how security teams can pivot from reactive patching to proactive, behavioral threat hunting.

📰 Around the Cyber World

  • Vulnerability Exploitation Overtakes Compromised Credentials in a Long Time —Vulnerability exploitation has overtaken compromised credentials for the first time in nearly two decades as the most common initial access vector for data breaches, per Verizon. Nearly a third (31%) of data breaches over the past year started with vulnerability exploitation, up from 20% in 2024. Credential abuse declined from 22% to 13%. What’s more, only 26% of critical vulnerabilities listed in the U.S. Cybersecurity Infrastructure and Security Agency Known Exploited Vulnerabilities (KEV) catalog were fully remediated by organizations in 2025, a drop from 38% the previous year. «The median time for full resolution went up to 43 days, almost two weeks more than the previous year’s 32 days,» the report said. «In the median case, organizations had 50% more critical vulnerabilities to patch in this year’s reporting dataset compared to the previous year.» Ransomware accounted for 48% of all breaches last year, up from 44% in 2024. But in a positive development, ransom payments have continued to decline, with the median payment sliding from $150,000 in 2024 to almost $140,000.
  • Attackers Go After India’s Education Ecosystem —Threat actors are abusing student data within India’s education ecosystem, spanning educational institutions, third-party vendors, and online services, for phishing, impersonation, social engineering, and financially motivated fraud operations. «Attackers commonly leverage exposed or misused student information to create highly convincing scams related to admissions, scholarships, internships, fee payments, and academic services,» CYFIRMA said. «In several instances, threat actors exploited trusted educational branding, fraudulent portals, and insider access to obtain credentials, financial information, or direct payments. Additionally, some cases indicated the misuse of student-linked bank accounts within broader fraud and mule account operations.»
  • RondoDox Adds ASUS Router Flaw to its Arsenal —The operators of the RondoDox botnet have incorporated CVE-2018-5999 (CVSS score: 9.8), a critical ASUS router flaw, to their arsenal, marking the first observation of in-the-wild exploitation of the vulnerability. The activity was first detected on May 17, 2026, against its honeypots. «The attack pattern: payloads that set the ateCommand_flag to 1, enabling the infosvr interface to accept arbitrary configuration changes,» VulnCheck CTO Jacob Baines said in a post on LinkedIn.
  • Fake Microsoft Teams Sites Deliver ValleyRAT —Fake Microsoft Teams distribution sites shared on X are being used to trick unsuspecting users into downloading a trojanized installer packaged as a ZIP archive, ultimately leading to the deployment of ValleyRAT, a malware associated with a Chinese cybercrime group called Silver Fox. «The delivered payload leverages a DLL sideloading chain via a legitimate executable (GameBox.exe) developed by Tencent, ultimately deploying a ValleyRAT variant,» K7 Labs said. «This malware campaign stands out for its clean execution chain, combining social engineering with staged payload delivery, in-memory decryption, and stealthy persistence mechanisms.»
  • Malicious Activity Targeting Malaysian Entities —An attacker-controlled infrastructure hosted on Microsoft Azure infrastructure in the Malaysia West region has been used to conduct a targeted intrusion campaign against multiple Malaysian organizations, per Oasis Security. «The operation demonstrates a high degree of operational planning, with the attacker developing purpose-built Python tooling for each target — covering internal network enumeration, database access, and external data exfiltration,» the company said. The infrastructure hosts target-specific Python scripts, webshell deployment tools, a Laravel remote code execution exploit chain, and source code for custom command-and-control (C2) components.
  • Texas Attorney General Sues Meta Over WhatsApp Encryption Claims —The Texas Attorney General has sued Meta over allegations that the company’s WhatsApp messenger doesn’t provide the end-to-end encryption (E2EE) it has long claimed. «Reports suggest that employees of WhatsApp have been able to access user communications,» the Office of the Texas Attorney General said. «Additional reporting and investigations indicate that message content can be pulled and viewed after the message has been sent. This is a complete and total misrepresentation of Meta’s privacy policies.» The lawsuit hinges on a report from Bloomberg from last month about how the U.S. Commerce Department’s Bureau of Industry and Security had abruptly closed an investigation into allegations that Meta could access encrypted WhatsApp messages. Preliminary findings from the department claimed that «there is no limit to the type of WhatsApp message that can be viewed by Meta.» Meta has called the allegations «baseless.»
  • FIOD Arrests Two in Connection with Stark Industries —The Netherlands Fiscal Intelligence and Investigation Service (FIOD) arrested two men and seized 800 servers in connection with a web hosting company that enabled cyber attacks, interference operations, and disinformation campaigns. The arrested individuals included a 57-year-old man from Amsterdam and a 39-year-old man from The Hague. Although the name of the company was not explicitly mentioned, it is assessed to be Stark Industries, which was sanctioned by the E.U. in May 2025. Following the sanctions, a significant chunk of the technical infrastructure was transferred to a Dutch-based entity known as THE.Hostingaka WorkTitans. «This new company actually acts as a cover for the sanctioned entities,» FIOD said. «The director and (indirect) sole shareholder of this company is the 57-year-old suspect.» A second unnamed Dutch company is said to have played a facilitating role. «This company, of which the 39-year-old is a suspected director and sole shareholder, ensures that the servers of the former new company are connected to the internet,» FIOD added.
  • UNG0002 Targets Chinese Educational Sector —The Chinese educational sector has become the target of a new campaign conducted by UNG0002 as part of a spear-phishing campaign codenamed Operation Dragon Whistle. «What makes this campaign particularly effective is the precision of its social engineering,» Seqrite Labs said. «The threat actor did not use a generic lure — they specifically identified that Changzhou University conducts mandatory annual fitness assessments where failure directly impacts graduation eligibility. This creates an environment of urgency and compliance that significantly increases the probability of victim engagement.» The emails have been found to distribute ZIP archives that ultimately lead to the deployment of Cobalt Strike Beacon.
  • Void Botnet Uses Ethereum Smart Contracts for C2 —A new botnet malware called Void Botnet uses Ethereum smart contracts for seizure-resistant command-and-control (C2). It’s a Rust-based malware that’s advertised on cybercrime forums by a developer operating under the handle TheVoidStl. «Based on the seller’s documentation and panel screenshots, Void Botnet is a Rust-native loader with two command-and-control modes in the same binary,» Qrator Labs said. «The first mode routes commands through Ethereum smart contracts: the operator writes instructions to a contract, and infected machines check it at regular intervals, picking up new tasks within three to five minutes. The second mode connects machines directly to the operator’s web panel, with tasks completing in under thirty seconds. The operator switches between them at any time by updating the contract.» The botnet works by writing commands to smart contracts, bots polling public RPC endpoints, and C2 infrastructure that is hard to take down.
  • Proton Debuts AI Access Tokens in Proton Pass —Proton Pass, a secure, end-to-end encrypted (E2EE) password manager, has added credential sharing through AI access tokens, allowing users to give AI agents access to items it’s permissioned to and monitor their activity. «AI access tokens are our newest secure sharing option to bring password management into the age of agentic AI,» Proton said. «Every time an AI agent uses an access token, this is logged, and a reason for the access must be provided. For extra security, you can also set an expiration for each token, from one hour to one year, after which it can no longer be used.»
  • DevilNFC and NFCMultiPay Android NFC Relay Malware Spotted —Two new Android NFC relay malware families named DevilNFC and NFCMultiPay have been observed targeting European and LATAM banking customers. «These two NFC relay toolkits are being developed and operated outside the Chinese-speaking MaaS ecosystem: DevilNFC carries an exclusively Spanish-speaking attribution, while NFCMultiPay’s developer fingerprint is Portuguese (Brazilian),» Cleafy said. «Local groups are no longer buying access to Chinese platforms; they are building their own.» It’s assessed that the malware families may have been developed with assistance using generative artificial intelligence (AI). Both malware families are designed to collect the victim’s card PIN. «DevilNFC further locks the victim inside the malicious interface via Kiosk Mode, preventing any escape while the relay completes,» the Italian company said. «DevilNFC employs an asymmetric architecture in which a single APK serves both roles in a relay attack: a passive reader on the victim’s device and a system-level card emulator on the attacker’s rooted device, achieved via a hooking framework that intercepts NFC traffic below the Android API layer.» DevilNFC overlaps with an NGate variant documented by ESET last month. The malicious apps are distributed via SMS or WhatsApp messages, directing victims to fake landing pages impersonating Google Play Store listings. 
  • TAX#TRIDENT Uses Indian Income Tax Lures —A new campaign dubbed TAX#TRIDENT is using Indian Income Tax-themed lures to target Windows endpoints via three delivery paths. The campaign starts with fake tax assessment lures and then moves victims toward ZIP files, VBScript downloaders, or PHP-looking web endpoints that actually return script content,» Securonix said. «The first branch uses a ZIP file and a signed ClientSetup installer. Once executed, the installer creates a hidden client tree, adds service and driver persistence, and starts network communication. The second branch uses ‘Assessment_Order.vbs.’ The script shows a tax assessment decoy image, downloads the same ClientSetup payload, writes a new ‘YTSysConfig.ini,’ and runs the payload hidden. The third branch uses a PHP-looking endpoint that returns VBScript. That script downloads more stages from S3, disguises a VBS file as a PNG image, changes UAC prompt behavior, and silently installs a signed ManageEngine UEMS / Endpoint Central agent.» 
  • CISA Launches KEV Nomination Form to Report Exploited Bugs —The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has introduced an online Nomination Form that lets researchers, vendors, and industry partners submit known exploited vulnerabilities (KEVs) directly so as to «quickly identify, validate, and share KEVs, critical threat information.»
  • Exploitation of Four-Faith Router Flaw —Attackers are exploiting CVE-2024-9643 (CVSS score: 9.8), a critical authentication bypass flaw in Four-Faith F3x36 industrial cellular routers, as part of a large-scale campaign since mid-May 2026 to turn fold compromised devices into botnets for further campaigns. CrowdSec said it has observed 139 attacking IP addresses through May 18, 2026. «Exploitation was first observed on April 20 and escalated to the point of being reclassified as mass exploitation on May 12, a strong signal that attackers are operationalizing this flaw at scale,» it added.
  • Chinese-Language PhaaS Ecosystem Detailed —An analysis of a dozen current phishing-as-a-service (PhaaS) offerings in the Chinese underground has found that they have shifted away from static password harvesting towards real-time interception and tokenization via live administration panels, allowing attackers to capture one-time passcodes (OTPs) and bypass multifactor authentication (MFA) instantly. The services, such as YY Lai Yu, primarily target non-Chinese entities, with advertisements regularly posted to Telegram rather than channels such as WeChat (Weixin) or Tencent QQ. A crucial aspect of these operations is their exploitation of digital wallet provisioning to monetize stolen payment details. Attackers have been found to leverage captured credentials and OTPs to provision the victim’s card into a digital wallet on an attacker-controlled device. Once tokenized, the card can be used for high-value transactions, contactless payments, and ATM withdrawals. «Instead of simply gaining account access, these operations focus on exploiting digital wallet provisioning to transform stolen payment data into tokenized assets within ecosystems,» Google said. «This shift—combined with the use of encrypted delivery channels like RCS and iMessage to bypass traditional carrier security filters on SMS messages—represents an emerging development where the goal is no longer just a login, but securing direct, unauthorized control over a victim’s financial accounts.»

🔧 Cybersecurity Tools

  • Bumblebee → It is an open-source security tool for macOS and Linux designed to find software supply-chain vulnerabilities on developer computers. It acts as a lightweight, read-only scanner that audits metadata files, manifests, and configurations rather than executing code. This allows it to safely check local language packages, web browser extensions, text editor add-ons, and AI tool configurations for known security exposures without running potentially malicious install scripts.
  • Claude-BugHunter → It is an open-source add-on that configures Anthropic’s Claude Code command-line tool into a specialized security assistant. It equips the AI with pre-built vulnerability patterns, attack techniques, and reporting templates, automating the process of finding and documenting security flaws during authorized testing.

Disclaimer: This is strictly for research and learning. It hasn’t been through a formal security audit, so don’t just blindly drop it into production. Read the code, break it in a sandbox first, and make sure whatever you’re doing stays on the right side of the law.

Conclusion

Patch the easy stuff before it becomes a bigger problem next week. The old bugs everyone ignored? Attackers didn’t ignore them. They never do.

Right now, the internet feels held together with tape and luck. Every week, there’s a new mess, a new scam, or some old box getting dragged into a botnet. See you next Monday.

SMS Blaster Busts, OpenEMR Flaws, 600K Roblox Hacks and 25 More Stories – CYBERDEFENSA.MX

The internet is noisy this week. We are seeing some wild new tactics, like people using fake cell towers to send scam texts, while some developers are accidentally downloading tools that peek into their private files during a simple install. It is definitely a busy time to be online.

Security is always a moving target. Millions of servers are currently sitting online without any passwords, and old software bugs are showing up in the most unexpected places. Even with the right fixes available, staying one step ahead is a full-time job for all of us.

Data is shifting in strange ways, too. Some browser tools are now legally selling user history for profit, and new kits are making it simpler for almost anyone to launch a campaign. You have to see these latest updates to believe them. Let’s look at the full list…

Security is a team sport. We keep seeing the same gaps because we focus on the new shiny toys while the basics, like simple passwords and old software versions, fall through the cracks. It is clear that just having a patch isn’t enough if nobody actually installs it.

The best lesson here is to stay curious and cautious. Whether it is a weird text from a «trusted» source or a new tool that seems too good to be true, taking a second to verify can save a lot of trouble later. Let’s keep learning and stay sharp until the next update!

Kali Linux + Claude, Chrome Crash Traps, WinRAR Flaws, LockBit & 15+ Stories – CYBERDEFENSA.MX

Nothing here looks dramatic at first glance. That’s the point. Many of this week’s threats begin with something ordinary, like an ad, a meeting invite, or a software update.

Behind the scenes, the tactics are sharper. Access happens faster. Control is established sooner. Cleanup becomes harder.

Here is a quick look at the signals worth paying attention to.

These stories may seem separate, but they point in the same direction. Speed is increasing. Deception is improving. And attackers are finding new ways to blend into everyday activity.

The warning signs are there for those who look closely. Small gaps, delayed patches, misplaced trust, and rushed clicks still make the biggest difference.

Staying aware of these shifts is no longer optional. The details change each week. The pressure does not.