🔴 Critical | Source: The Hacker News
A Linux kernel vulnerability dubbed ‘Bad Epoll’ (CVE-2026-46242) allows an unprivileged local user to escalate privileges to root, giving them full control of an affected system. It impacts Linux desktops, servers, and Android devices. A patch has been released, making rapid remediation the immediate priority.
Security Architect’s Take: Prioritise patching Linux hosts and Android-based endpoints — particularly cloud workloads running on Linux VMs or containers — to the latest kernel version addressing CVE-2026-46242. Assess your attack surface for any multi-tenant or shared environments where unprivileged user access exists, as local privilege escalation flaws carry the highest risk in those contexts.
Original advisory: New “Bad Epoll” Linux Kernel Flaw Lets Unprivileged Users Gain Root, Hits Android