CVE-2026-51537

A flaw was found in OpENer. An out-of-bounds read vulnerability exists in the Connection Manager when processing malformed ForwardOpen requests. A remote attacker can send a specially crafted Ethernet/IP ENIP frame with an insufficient Common Industrial Protocol CIP ForwardOpen/LargeForwardOpen...

CVE-2026-51537

EIPStackGroup OpENer 2.3.0 commit 76b95cf has an out-of-bounds read issue in Connection Manager handling of ForwardOpen requests when processing short malformed packets. An attacker can send a valid ENIP outer frame carrying a malformed CIP ForwardOpen/LargeForwardOpen request, causing the parser...

CVE-2026-51537

OpENer 2.3.0 (commit 76b95cf) contains an out-of-bounds read in the Connection Manager when processing malformed ForwardOpen/LargeForwardOpen requests, allowing a remote attacker to trigger the issue over the network without authentication. Red Hat notes potential denial of service or information...

CVE-2026-51537

EIPStackGroup OpENer 2.3.0 commit 76b95cf has an out-of-bounds read issue in Connection Manager handling of ForwardOpen requests when processing short malformed packets. An attacker can send a valid ENIP outer frame carrying a malformed CIP ForwardOpen/LargeForwardOpen request, causing the parser...

CVE-2026-51537

EIPStackGroup OpENer 2.3.0 commit 76b95cf has an out-of-bounds read issue in Connection Manager handling of ForwardOpen requests when processing short malformed packets. An attacker can send a valid ENIP outer frame carrying a malformed CIP ForwardOpen/LargeForwardOpen request, causing the parser...