Linux kernel TCP flaw rated 9.8 CVSS affects Ubuntu and RHEL

A flaw in the Linux kernel's TCP code, tracked as CVE-2026-98432, affects Ubuntu, Red Hat Enterprise Linux and other distributions. The kernel CVE team rates it 9.8 out of 10; Anthropic said its AI model wrote an exploit that lets an unauthenticated remote attacker run commands as root.

• CVE-2026-98432 is rated 9.8 out of 10 on the CVSS scale
• Ubuntu, Red Hat Enterprise Linux and other distributions are affected
• The exploit allows unauthenticated remote command execution as root
• Anthropic reported the exploit on October 27