privilege escalation — Cybersecurity News

Critical Linux Kernel Flaw Allows Unprivileged Users to Gain Root Access

RedSide Security June 28, 2026 CVE 55 views

Critical Linux kernel vulnerability CVE-2026-46331 allows unprivileged users to gain root access by exploiting a page-cache corruption flaw in the net/sched act_pedit subsystem. The issue affects Linux kernels 5.18 through 7.1-rc6 and has been successfully demonstrated against RHEL, Debian, and Ubuntu systems.

Linux Kernel Dirty Frag LPE Exploit Enables Root Access Across Major Distributions

RedSide Security May 10, 2026 CVE 86 views

A newly disclosed Linux kernel vulnerability chain, dubbed **Dirty Frag**, enables unprivileged local users to gain root access across major Linux distributions. The flaw combines two page-cache write issues in the xfrm-ESP and RxRPC subsystems, creating a deterministic and highly reliable privilege escalation method. Limited in-the-wild exploitation has already been observed, with attackers using it in post-SSH compromise scenarios.

New Chrome Vulnerability Let Malicious Extensions Escalate Privileges via Gemini Panel

RedSide Security March 03, 2026 Vulnerability 120 views

Mandiant Releases Rainbow Tables Enabling NTLMv1 Admin Password Hacking

RedSide Security January 18, 2026 Tools & Technology 232 views