importantSYS.SOURCE: NVD• 2026-07-08T13:24:52Z

Use-after-Free Vulnerability in OpenBSD Enables Local Privilege Escalation to Root

#OpenBSD#Use-after-Free#Privilege Escalation#Security Vulnerability#Root Access

A use-after-free vulnerability in OpenBSD's sys/kern/sysv_sem.c through version . allows local privilege escalation to root via a context switch after tsleep in sys_semget(). The National Vulnerability Database (NVD) reports this as a critical security issue requiring immediate attention.

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