Latest cybersecurity reporting from selected sources.

DirtyClone: a Linux kernel privilege escalation that silently rewrites executables in memory, leaving no disk trace. Patch now. JFrog Security Research published a working exploit walkthrough on June 25 for CVE-2026-43503 (CVSS score of 8.8), a Linux kernel privilege escalation they call DirtyClone. It’s the fourth vulnerability in the DirtyFrag family, all sharing the same […]

DirtyClone is a new Linux kernel privilege escalation in the DirtyFrag family. JFrog Security Research published a working exploit walkthrough for the flaw on June 25, the first public demonstration for this variant

Security researchers have published a detailed, working exploit for a Linux kernel use-after-free that lets an unprivileged local user escalate to root and break out of a container

No Patches Yet Available, After Third Party Published Vulnerability DetailsSecurity researchers have discovered a new, critical flaw in the Linux kernel that attackers can exploit to gain root access. No patches are yet available to fix "Dirty Frag," the second new local privilege escalation flaw to be found in two weeks, following the similar "Copy Fail" vulnerability.

Researchers dropped a reliable root exploit and it didn’t sit idle for long

Researchers dropped a reliable root exploit and it didn’t sit idle for long CISA is warning that a newly-disclosed Linux kernel bug dubbed "CopyFail" is already being exploited, just days after researchers dropped a working root-level exploit.…

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. [...]

Race-Condition Bugs in Ubuntu and Red Hat Tools Could Leak Sensitive Memory DataHackers could exploit a tool that stores crashed system data in older Linux operating systems to obtain passwords and encryption keys, warn researchers. The flaw lies in the way certain Linux distributions, including Ubuntu, Red Hat, and Fedora, handle application crashes.

Update now: Qualys says flaws give root to local users, are 'easily exploitable' Researchers at Qualys refuse to release exploit code for five bugs in the Linux world's needrestart utility that allow unprivileged local attackers to gain root access without any user interaction.…

Multiple decade-old security vulnerabilities have been disclosed in the needrestart package installed by default in Ubuntu Server (since version 21.04) that could allow a local attacker to gain root privileges without requiring user interaction

Researchers have demonstrated the "first native Spectre v2 exploit" for a new speculative execution side-channel flaw that impacts Linux systems running on many modern Intel processors. [...]

Kinsing Threat Actor Observed Targeting Vulnerable Cloud Environments With New FlawThe Cybersecurity and Infrastructure Security Agency is requiring federal agencies to patch Linux devices on their networks and urging private sector organizations to do the same after security researchers observed threat actors exploiting a new vulnerability on many major Linux distributions.

Cybersecurity researchers have disclosed two high-severity security flaws in the Ubuntu kernel that could pave the way for local privilege escalation attacks

Details of an eight-year-old security vulnerability in the Linux kernel have emerged that the researchers say is "as nasty as Dirty Pipe." Dubbed DirtyCred by a group of academics from Northwestern University, the security weakness exploits a previously unknown flaw (CVE-2022-2588) to escalate privileges to the maximum level