CVE-2026-75347

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

EIPStackGroup OpENer v2.3 and master up to commit 76b95cf contain an expired pointer dereference vulnerability in the EtherNet/IP Common Packet Format (CPF) handling logic. This allows a remote attacker to cause a denial of service.

Published 2026-10-09. Last modified 2026-10-09.