CVE-2026-57589
- State
- Published
- Severity
- 7.4 High
- Published
- Jun 25, 2026
- Updated
- Jun 26, 2026
- Reserved
- Jun 25, 2026
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().
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.4 High | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | mitre |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
OpenBSDOpenBSD |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.