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CVE PROGRAM SOURCE RECORD7.4 High

CVE-2026-57589

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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Status
Published
Published
Updated
Assigning organization
mitre

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().

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

OpenBSD OpenBSD

Default version status: unaffected

  • 0 to ≤ 7.9affected

References