TCP Use-After-Free: CVE-2026-98432 / CVSS 9.8
atlasum.net
CVE-2026-98432 is a CVSS 9.8 remote use-after-free in Linux's IPv4 TCP handshake, fixed upstream Oct 15. Ubuntu and RHEL haven't shipped a fixed kernel yet.
Summary drawn from atlasum.net's own description of the story.