CVE-2026-57589

Name: CVE-2026-57589
Creator: NVD / NIST
Published: 2026-06-25T01:16:26.537+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.13%

Last modified Jun 26, 2026

This CVE is reserved or awaiting analysis. Details will appear once published by NVD.

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().

Metrics

CVSS 3.1

7.4/10

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.13%

2.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

References

https://github.com/openbsd/src/commit/1957873d2063db11dab780eca75b5e629d1e838d
https://openai.com/index/patch-the-planet/

Timeline

Published: Jun 25, 2026
Last Modified: Jun 26, 2026
Status: Awaiting Analysis

Are you affected by CVE-2026-57589?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST