Use-after-free

Assess

Techniques

A memory-safety bug where freed memory is accessed again.

Why it's here

Placed in Assess: 1 article(s) of evidence from 1 source(s), led by security coverage, with 0 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.

Evidence (1)

8Hacker News·7/8/2026security
OpenBSD use-after-free bug enables local root escalation
A vulnerability identified as CVE-2026-57589 affects OpenBSD through version 7.9 in sys/kern/sysv_sem.c. The flaw is a use-after-free in sys_semget() that can allow a local attacker to escalate privileges to root, with a MITRE-assessed CVSS 3.1 score of 7.4 high.