CVE-2026-75347
Description
A flaw was found in opener. This flaw allows a remote attacker to cause a Denial of Service (DoS) due to an expired pointer dereference in the EtherNet/IP Common Packet Format (CPF) handling logic. By sending specially crafted network packets, an attacker can trigger invalid memory access, causing the application to crash.
Statement
This vulnerability is rated as Important because an unauthenticated remote attacker can trigger a denial of service across the network without requiring credentials or user interaction. OpENer is an EtherNet/IP stack designed for industrial control devices and is not included or enabled in Red Hat Enterprise Linux. Therefore, standard Red Hat enterprise installations are not affected by default.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
