{"id":"CVE-2026-51540","details":"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).","modified":"2026-10-28T02:30:59.119597787Z","published":"2026-07-13T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/51xxx/CVE-2026-51540.json"},"references":[{"type":"WEB","url":"https://gist.github.com/MrAlaskan/5e0c2af7f4a1d188814c7fa8f812c8da"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/51xxx/CVE-2026-51540.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-51540"},{"type":"REPORT","url":"https://github.com/EIPStackGroup/OpENer/issues/568"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/eipstackgroup/opener","events":[{"introduced":"0"},{"last_affected":"76b95cf"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"last_affected":"76b95cf"}],"source":"DESCRIPTION"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-51540.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}