CVE-2026-76988

A weakness has been identified in liftoff-sr CIPster 1802525be27d33e19a9a83c163e331a1d13b1892. This affects the function CipConnMgrClass::forwardopen of the file cipconnectionmanager.cc of the component ForwardOpen Handler. Executing a manipulation of the argument productcode can lead to...

CVE-2026-76988 liftoff-sr CIPster ForwardOpen cipconnectionmanager.cc forward_open out-of-bounds

A weakness has been identified in liftoff-sr CIPster 1802525be27d33e19a9a83c163e331a1d13b1892. This affects the function CipConnMgrClass::forwardopen of the file cipconnectionmanager.cc of the component ForwardOpen Handler. Executing a manipulation of the argument productcode can lead to...

CVE-2026-76988

CIPster's ForwardOpen handler in cipconnectionmanager.cc reads attacker-controlled product_code_ without bounds checking, causing an out-of-bounds read exploitable remotely with no authentication. CVSS 5.3 (MEDIUM) impact is availability only. Public proof-of-concept exploit exists; apply patch e...

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...

PT-2026-57876

Name of the Vulnerable Software and Affected Versions EIPStackGroup OpENer version 2.3.0 commit 76b95cf Description An out-of-bounds read occurs in the Connection Manager when handling ForwardOpen requests during the processing of short malformed packets. An unauthenticated remote attacker can...

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...