An out-of-bounds read vulnerability exists in EIPStackGroup OpENer v2.3 and master through commit 76b95cf in the server-side CIP SetAttributeList service. This allows a remote attacker to cause a denial of service

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-75346 · Microsoft / collected KEV context

cve-program · CVE-2026-75346

• https://github.com/EIPStackGroup/OpENer
• https://github.com/EIPStackGroup/OpENer/issues/572
• https://github.com/EIPStackGroup/OpENer/blob/master/source/src/cip/cipcommon.c
• https://github.com/EIPStackGroup/OpENer/blob/master/source/src/cip/ciptypes.c
• https://github.com/EIPStackGroup/OpENer/blob/master/source/src/enet_encap/endianconv.c
• https://github.com/EIPStackGroup/OpENer/blob/master/source/src/cip/cipidentity.c

No related operational record is retained in the current change model.