CVE-2026-51541

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...

PT-2026-57879

Name of the Vulnerable Software and Affected Versions OpENer version 2.3.0 Description An out-of-bounds read occurs during CIP Common Industrial Protocol message parsing when processing malformed explicit requests. An attacker can send a valid ENIP SendRRData frame containing a short CIP payload...

CVE-2026-51541

OpENer 2.3.0 (commit 76b95cf) is affected by CVE-2026-51541 due to an out-of-bounds read in CIP message parsing when processing malformed explicit requests with a forged EPath size. An ENIP SendRRData frame carrying a short CIP payload with a larger declared path_size can cause the parser to cont...