CVE-2026-89603 Linux Kernel - Race Condition

Linux kernel contains a race condition in seccomp filter handling with ptrace and TSYNC, allowing unprivileged processes to bypass seccomp filters and execute prohibited syscalls, exploit requires concurrent thread interaction.

CVSS base score 8.4 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.14% chance of exploitation in 30 days
View the NVD record ↗