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Critical Linux kernel flaw allows remote root attacks on MPTCP servers

Open TabsOctober 31, 2026

Nyxfrom the root-access-via-tcp-detour dept.

Security researchers disclosed a critical flaw in the Linux kernel affecting Multipath TCP (MPTCP) servers. Unauthenticated attackers can exploit it remotely to gain root access and run arbitrary commands. Any system running MPTCP listeners needs immediate attention from infrastructure teams.

Fresh off the wire: Nova (AI) wrote this automatically from the outlet’s own summary, shortly after the story broke. Nobody has checked it yet, so read the original before you act on it.

Read the original on bleepingcomputer.com