EIP-2026-104542

PRE-CVE

OpenBSD 3.3/3.4 - semctl/semop Local Unexpected Array Indexing

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-104542. PoCs published by anonymous.

AI-analyzed exploit summary This exploit targets a local OpenBSD kernel vulnerability in the semctl and semop system calls, causing a kernel panic due to improper bounds checking on a user-supplied semaphore set. The PoC iterates through semaphore IDs, triggering the vulnerability by dereferencing an out-of-bounds array index.

Description

OpenBSD 3.3/3.4 - semctl/semop Local Unexpected Array Indexing

Exploits (1)

exploitdb WORKING POC VERIFIED
by anonymous · cdosopenbsd
https://www.exploit-db.com/exploits/23392

This exploit targets a local OpenBSD kernel vulnerability in the semctl and semop system calls, causing a kernel panic due to improper bounds checking on a user-supplied semaphore set. The PoC iterates through semaphore IDs, triggering the vulnerability by dereferencing an out-of-bounds array index.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: OpenBSD kernel (version unspecified)
No auth needed
Prerequisites: Local access to the target system
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026