Unpatched Flaws Disclosed in Filesystem Bundled Into Millions of Embedded Devices

Security firm runZero has disclosed seven vulnerabilities in FatFs, a small filesystem library that lets a device read and write the FAT and exFAT formats used on USB drives and SD cards. The flaws matter because FatFs is nearly everywhere. It ships inside

New “Bad Epoll” Linux Kernel Flaw Lets Unprivileged Users Gain Root, Hits Android

A newly disclosed Linux kernel flaw called Bad Epoll (CVE-2026-46242) lets an ordinary user with no special access take full control of a machine as root. It affects Linux desktops, servers, and Android, and a fix is out. Bad Epoll

New Avalon Malware Framework Packs CrownX Ransomware Capabilities

Cybersecurity researchers have discovered a previously undocumented modular malware framework codenamed Avalon that’s distributed by means of a multi-stage phishing chain capable of bypassing traditional security controls. Avalon combines credential collection, lateral movement, remote access, recovery disruption, and ransomware execution,

North Korea-Linked npm Packages Mimic Rollup Polyfills to Steal Developer Secrets

Threat actors with ties to North Korea have been linked to a fresh set of malicious npm packages that masquerade as Rollup polyfill tooling to facilitate remote access and data theft. According to JFrog, the packages “rollup-packages-polyfill-core” and “rollup-runtime-polyfill-core” mimic

Armored Likho Targets Government Agencies, Power Sector with BusySnake Stealer

A previously undocumented threat actor known as Armored Likho has been attributed to cyber attacks targeting government agencies and the electric power sector across Russia, Brazil, and Kazakhstan. “Armored Likho blends financially motivated campaigns targeting private individuals with targeted cyber

European Parliament Member Investigating Spyware Was Hacked With Pegasus

A new report from the Citizen Lab has revealed that former Member of the European Parliament Stelios Kouloglou had his mobile device repeatedly hacked with the notorious Pegasus spyware while serving on a committee that was tasked with investigating the

PamStealer Uses Fake Maccy Sites and PAM Checks to Steal Mac Login Passwords

Cybersecurity researchers have flagged a new macOS information stealer called PamStealer that employs a series of clever tricks to infect systems and siphon sensitive data. The stealer, discovered by Jamf Threat Labs, is distributed as a compiled AppleScript (.scpt) file

Google Disrupts NetNut Residential Proxy Network Spanning 2 Million Home Devices

Google has significantly degraded NetNut, one of the biggest networks that turns home devices into rented relays for other people’s traffic. Working with the FBI, Lumen, and others, Google’s Threat Intelligence Group (GTIG) said this week it had reduced the network’s pool

Ransomware Groups Turn to Citrix Bleed 2, BYOVD, and Supply Chain Credentials

Threat actors associated with the Anubis ransomware operation have been observed exploiting the Citrix Bleed 2 (CVE-2025-5777) vulnerability to obtain initial access. “Although tactics differ between affiliates, common patterns emerged in tradecraft through use of legitimate Remote Management and Monitoring

ThreatsDay: AI Compute Hijacking, Apple Email Flaw, BlueHammer Ransomware + 14 Stories

This week’s security news is mostly about weak spots. Browsers, bots, sandboxes, AI systems, and email flows all show the same problem in different ways. Everything looks normal until someone tests a small gap and finds a way through. This