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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().
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
| Date | Total | Labels |
|---|
| 2026-07-08 | 1 | Patch1 |
| 2026-07-09 | 1 | Patch1 |
| 2026-07-12 | 1 | General1 |
https://nvd.nist.gov/vuln/detail/cve-2026-57589 #openbsd #bsd #cve #cve202657589 #cybersecurity
Post summary
The post simply links to the NVD entry for CVE‑2026‑57589 and lists relevant hashtags, providing no substantive technical or operational information.
OpenBSD fix incoming: a use-after-free flaw enables local privilege escalation to root. Patch fast, system hardening matters. Details: CVE-2026-57589. #Security #OpenBSD #CVE #PrivEsc #Infosec
Post summary
OpenBSD CVE‑2026‑57589 is a use‑after‑free flaw allowing local privilege escalation to root, and a patch has already been released.
OpenBSD 7.9 use-after-free flaw lets local users escalate to root (CVE-2026-57589). Patch now. https://www.foursignals.dev/wire/2026-07-08/openbsd-through-7-9-has-a-use-after-free-allowing-local-7f4c5f
Post summary
OpenBSD 7.9 is affected by a use-after-free bug that lets local users gain root access; a patch has been released.
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| OS | openbsd | openbsd | - | - | - |