Security Advisory

CVE-2026-57589

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-25 00:33:04

Last updated 2026-06-26 03:55:33

Assigner mitre

CVSS score 7.4

State PUBLISHED

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().

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