high7.4
CVE-2026-57589
sys/kern/sysv_sem.c in OpenBSD through 7.9 has a use-after-free allowing local privilege escalation to root.
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Openbsd | Openbsd | through 7.9 |