Dirty Frag is a new Linux bug putting your system at risk - and there's no easy fix yet
ID: 2e2c51ee-eea5-5146-b29d-716caea1c224
STIX ID: report--2e2c51ee-eea5-5146-b29d-716caea1c224
Feed Name: ZDNet Security
Threat Score
ZDNET describes the "Dirty Frag" Linux kernel vulnerability chain that targets xfrm-ESP (CVE-2026-43284) and RxRPC (CVE-2026-43500) to create page-cache write primitives enabling unprivileged accounts to escalate to root. Public proof-of-concept code was widely mirrored after an embargo break, Microsoft reported observed exploitation, and vendors recommend temporary mitigations (blacklisting esp4/esp6/rxrpc) and timely kernel updates and reboots.
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