{"id":"CVE-2026-51540","aliases":["EUVD-2026-43606","GHSA-vq3c-wgc6-rvmq"],"status":"published","title":"OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption...","description":"OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by an integer underflow in the processing of connected explicit messages (SendUnitData).","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00566,"percentile":0.47261,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-191"],"published":"2026-07-13T00:00:00Z","modified":"2026-10-28T02:30:59Z","products":[{"vendor":"opener_project","product":"opener"}],"references":[{"url":"https://github.com/EIPStackGroup/OpENer/issues/568","tags":["exploit","Exploit","Issue Tracking","Vendor Advisory","report"]},{"url":"https://gist.github.com/MrAlaskan/5e0c2af7f4a1d188814c7fa8f812c8da","tags":["Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-51540","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vq3c-wgc6-rvmq"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/51xxx/CVE-2026-51540.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-51540","description":"OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by an integer underflow in the processing of connected explicit messages (SendUnitData).","status":"published","published":"2026-07-13T00:00:00Z","modified":"2026-07-14T16:27:06.729Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T13:39:50.160666Z"}],"euvd":[{"id":"EUVD-2026-43606","description":"OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by an integer underflow in the processing of connected explicit messages (SendUnitData).","status":"published","published":"2026-07-13T00:00:00Z","modified":"2026-07-14T16:27:06Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T18:19:59.200665Z"}],"ghsa":[{"id":"GHSA-vq3c-wgc6-rvmq","title":"OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption...","description":"OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by an integer underflow in the processing of connected explicit messages (SendUnitData).","status":"published","published":"2026-07-14T00:31:02Z","modified":"2026-07-14T18:31:52Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T15:09:27.635559Z"}],"nvd":[{"id":"CVE-2026-51540","description":"OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by an integer underflow in the processing of connected explicit messages (SendUnitData).","status":"published","published":"2026-07-13T22:16:47.703Z","modified":"2026-08-11T16:27:15.207Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T14:12:29.114188Z"}],"osv":[{"id":"CVE-2026-51540","description":"OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by an integer underflow in the processing of connected explicit messages (SendUnitData).","status":"published","published":"2026-07-13T00:00:00Z","modified":"2026-10-28T02:30:59.119597787Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:07.431113Z"}]}}