{"id":"CVE-2026-75345","published":"2026-10-09T16:17:29.430","lastModified":"2026-10-13T17:17:45.667","description":"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.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-400"],"vendors":[],"products":[],"references":[{"url":"https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipcommon.c","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipmessagerouter.c","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/ciptcpipinterface.c","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/enet_encap/endianconv.c","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/issues/569","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/tree/76b95cf","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/issues/569","tags":[]}],"exploitRefs":[{"url":"https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipcommon.c","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipmessagerouter.c","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/ciptcpipinterface.c","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/enet_encap/endianconv.c","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/issues/569","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/tree/76b95cf","tags":[]},{"url":"https://github.com/EIPStackGroup/OpENer/issues/569","tags":[]}],"hasPoc":true,"ai":{"summary":"OpENer v2.3.0 contains an out-of-bounds read vulnerability in its unconnected explicit messaging path that can be exploited by remote attackers to cause a denial of service. This flaw occurs when processing certain network messages and allows an attacker to read memory beyond allocated bounds, potentially leading to system instability.","exploitability":"The exploit is relatively straightforward as it requires only sending specially crafted network messages to the affected OpENer service, with no authentication required for exploitation.","blast_radius":"In industrial control systems using OpENer, this vulnerability could lead to widespread service disruption across connected devices and processes, particularly in environments where unconnected explicit messaging is actively used.","remediation":"Upgrade to OpENer version 2.3.1 or later to address this out-of-bounds read vulnerability.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["ics","denial-of-service","network"],"model":"garnet-coder","analyzedAt":"2026-10-17T09:01:26.018Z"}}