CVE-2026-51541

OpENer version 2.3.0 (commit 76b95cf) contains an out-of-bounds read vulnerability during CIP message parsing . The flaw exists when handling malformed explicit requests where an attacker provides a forged EPath size . By sending a valid ENIP SendRRData frame with a short CIP payload but a large ...

CVE-2026-51541: Out-of-bounds Read

OpENer 2.3.0 commit 76b95cf has an out-of-bounds read issue in CIP message parsing when handling malformed explicit requests with a forged EPath size. An attacker can send a valid ENIP SendRRData frame carrying a very short CIP payload whose pathsize field claims that many more path words are...