Red Hat Called This Bug a 5.9. Two Weeks Later It Was a 9.8.
CVE-2026-98432 is a use-after-free in the IPv4 TCP handshake, reachable by anybody who can reach a listening port, sitting in the kernel since 4.4. Red Hat scored it 5.9 moderate and deferred the fix. Then 8.1. Then 9.8.