CVE-2026-57589
High · 7.4CVSS
7.4
EPSS
0.2%
Published
Jun 25, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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