{"id":"CVE-2026-78862","aliases":["EUVD-2026-92784","GHSA-qqh8-9c7w-5wf7"],"status":"published","title":"An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the UART...","description":"An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the UART serial interface on the printed circuit board (PCB)","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00261,"percentile":0.17985,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1299"],"published":"2026-10-05T00:00:00Z","modified":"2026-10-06T18:31:28Z","references":[{"url":"http://mercusys.com"},{"url":"http://ac12.com"},{"url":"https://threadpoolx.gitbook.io/docs/cve/mercusys-ac12-v2-security-advisory/unprotected-physical-debug-interface-uart","tags":["exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78862"},{"url":"https://github.com/advisories/GHSA-qqh8-9c7w-5wf7"}],"sources":{"cve":[{"id":"CVE-2026-78862","description":"An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the UART serial interface on the printed circuit board (PCB)","status":"published","published":"2026-10-05T00:00:00Z","modified":"2026-10-06T17:41:52.502Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-1299"],"updated_at":"2026-11-02T13:34:59.78118Z"}],"euvd":[{"id":"EUVD-2026-92784","description":"An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the UART serial interface on the printed circuit board (PCB)","status":"published","published":"2026-10-05T00:00:00Z","modified":"2026-10-06T17:41:52Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T17:27:37.140631Z"}],"ghsa":[{"id":"GHSA-qqh8-9c7w-5wf7","title":"An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the UART...","description":"An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the UART serial interface on the printed circuit board (PCB)","status":"published","published":"2026-10-05T21:31:37Z","modified":"2026-10-06T18:31:28Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-1299"],"updated_at":"2026-11-02T15:12:51.459076Z"}],"nvd":[{"id":"CVE-2026-78862","description":"An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the UART serial interface on the printed circuit board (PCB)","status":"published","published":"2026-10-05T20:17:27.57Z","modified":"2026-10-06T18:16:56.517Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-1299"],"updated_at":"2026-11-02T14:12:54.129949Z"}]}}