CVE-2026-57589

CVE-2026-57589CVE-2026-57589

Description

sys/kern/sysv_sem.c in OpenBSD through 7.9 has a use-after-free allowing local privilege escalation to root. This is a context switch use-after-free after tsleep in sys_semget().

Scoring

CVSS 7.4 ()
VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Last modified2026-06-25
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.