The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that hackers are exploiting three Linux kernel vulnerabilities, one of them rated critical. [...]

Mozilla announced today that it updated the GPG key used to sign Firefox and Thunderbird releases after it was accidentally exposed on GitHub. [...]

A nine-year-old race condition vulnerability in the Linux kernel's XFS filesystem, tracked as CVE-2026-64600, allows local attackers to overwrite protected files and gain root privileges. [...]

The OpenMandriva Linux project announced that it was the target of an attempted act of internal sabotage after a dispute among contributors. [...]

A 16-year-old Linux kernel vulnerability, dubbed Januscape, allows attackers to escape a virtual machine and execute arbitrary code on the host. [...]

Kali Linux 2026.2, the second release of the year, is now available for download, featuring 9 new tools and numerous Kali NetHunter improvements. [...]

Microsoft announced today at its Build 2026 developer conference the release of Coreutils for Windows, bringing many commonly used Linux command-line utilities to Windows as native applications. [...]

A newly discovered local privilege escalation vulnerability dubbed 'CIFSwitch' in the Linux kernel could allow attackers to forge CIFS authentication key descriptions, abuse the kernel's key request mechanism, and gain root privileges. [...]

Flipper Devices, the maker of the Flipper Zero pentesting tool, is asking the community to help build Flipper One, an open Linux platform for connected devices. [...]

PinTheft, a recently patched Linux privilege escalation vulnerability, now has a publicly available proof-of-concept (PoC) exploit that allows local attackers to gain root privileges on Arch Linux systems. [...]

A recently patched local privilege escalation vulnerability in the Linux kernel's rxgk module now has a proof-of-concept exploit that allows attackers to gain root access on some Linux systems. [...]

​During the second day of Pwn2Own Berlin 2026, competitors collected $385,750 in cash awards after exploiting 15 unique zero-day vulnerabilities in multiple products, including Windows 11, Microsoft Exchange, and Red Hat Enterprise Linux for Workstations. [...]

On the first day of Pwn2Own Berlin 2026, security researchers collected $523,000 in cash awards after exploiting 24 unique zero-days. [...]

A critical vulnerability affecting certain configurations of the Exim open-source mail transfer agent could be exploited by an unauthenticated remote attacker to execute arbitrary code. [...]

A new Linux zero-day exploit, named Dirty Frag, allows local attackers to gain root privileges on most major Linux distributions with a single command. [...]

A previously undocumented Linux implant named Quasar Linux (QLNX) is targeting developers' systems with a mix of rootkit, backdoor, and credential-stealing capabilities. [...]

CISA has warned that threat actors have started exploiting the "Copy Fail" Linux security vulnerability in the wild, one day after Theori researchers disclosed it and shared a proof-of-concept (PoC) exploit. [...]

An exploit has been published for a local privilege escalation vulnerability dubbed "Copy Fail" that impacts Linux kernels released since 2017, allowing an unprivileged local attacker to gain root permissions. [...]

A new vulnerability dubbed Pack2TheRoot could be exploited in the PackageKit daemon to allow local Linux users to install or remove system packages and gain root permissions. [...]

A Linux variant of the GoGra backdoor uses legitimate Microsoft infrastructure, relying on an Outlook inbox for stealthy payload delivery. [...]