
Anthropic Exploit Reveals Critical Linux Kernel Flaw (CVE-2026-98432) That Grants Remote Root on MPTCP Servers
Security researchers at Anthropic have developed an exploit for a critical Linux kernel vulnerability—tracked as CVE-2026-98432—that can allow unauthenticated attackers to execute commands as root on servers running Multipath TCP (MPTCP) listeners. The flaw is a use-after-free in the kernel's IPv4 TCP networking code and has been scored 9.8/10 by the Linux kernel CVE team, although some vendors assess exploitation complexity differently. What the flaw is CVE-2026-98432 stems from a…










