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Critical Linux kernel flaw enables remote root attacks

Original: cve 2026 98432

Security researchers have flagged a critical vulnerability in the Linux kernel, tracked as CVE-2026-98432, affecting servers with MPTCP (Multipath TCP) enabled. The flaw allows remote attackers to gain root-level control of affected systems without authentication. Administrators are urged to apply kernel patches promptly, and discussion is focused on which distributions are affected and how widely MPTCP is deployed in production.

Why now: A newly disclosed critical remotely exploitable kernel vulnerability is prompting admins and security teams to assess patching urgency.

Linux kernel CVE-2026-98432 MPTCP BleepingComputer

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Evidence

Critical Linux kernel flaw allows remote root attacks on MPTCP servers · BleepingComputer

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