{"id":"CVE-2026-75353","title":"OpENer v2.3/ commit 76b95cf, contains an out-of-bounds read in the server-side EtherNet/IP ForwardOpen connection-path parser","summary":"OpENer v2.3/ commit 76b95cf, contains an out-of-bounds read in the server-side EtherNet/IP ForwardOpen connection-path parser. This allows a remtoe attacker to cause a denial of service","severity":"high","published":"2026-10-09","updated":"2026-10-09","sourceUpdated":"2026-10-09T19:16:42.297","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-75353","references":[{"url":"https://github.com/EIPStackGroup/OpENer","label":"cve@mitre.org"},{"url":"https://github.com/EIPStackGroup/OpENer/issues/570","label":"cve@mitre.org"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-75353.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-75353"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-75353"}],"tags":["nvd","csaf","vex","red-hat","cve.org","exploit-available"],"ingestedAt":"2026-10-09T20:11:26.053Z","vendor":"Red Hat","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","epss":0.00337,"epssPercentile":0.26905,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-19T17:06:46.127073Z"},"slug":"CVE-2026-75353","body":"## Overview\n\nOpENer v2.3/ commit 76b95cf, contains an out-of-bounds read in the server-side EtherNet/IP ForwardOpen connection-path parser. This allows a remtoe attacker to cause a denial of service\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-10-09 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-75353.json)","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":225148,"id":"CVE-2026-75353","ts":1792438823154,"field":"exploit_available","old":"false","new":"true"},{"seq":218753,"id":"CVE-2026-75353","ts":1791620417428,"field":"cvss","old":null,"new":"7.5"},{"seq":218752,"id":"CVE-2026-75353","ts":1791620417428,"field":"severity","old":"none","new":"high"}]}