OpENer v2.3.0 / commit 76b95cf contains an out-of-bounds read in the unconnected explicit messaging path. 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-2026-75345 · Microsoft / collected KEV context

cve-program · CVE-2026-75345

• https://github.com/EIPStackGroup/OpENer/issues/569
• https://github.com/EIPStackGroup/OpENer/tree/76b95cf
• https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipmessagerouter.c
• https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipcommon.c
• https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/ciptcpipinterface.c
• https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/enet_encap/endianconv.c

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