{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-78861", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-10-05T19:34:32.662Z", "dateReserved": "2026-08-25T00:00:00.000Z", "datePublished": "2026-10-05T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-10-05T19:34:32.662Z"}, "descriptions": [{"lang": "en", "value": "An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via a hardcoded 512-bit RSA Private Key"}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "http://mercusys.com"}, {"url": "http://ac12.com"}, {"url": "https://threadpoolx.gitbook.io/docs/cve/mercusys-ac12-v2-security-advisory/hardcoded-private-key"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via a hardcoded 512-bit RSA Private Key"}], "id": "CVE-2026-78861", "lastModified": "2026-10-05T20:17:27.427", "metrics": {}, "published": "2026-10-05T20:17:27.427", "references": [{"source": "cve@mitre.org", "url": "http://ac12.com"}, {"source": "cve@mitre.org", "url": "http://mercusys.com"}, {"source": "cve@mitre.org", "url": "https://threadpoolx.gitbook.io/docs/cve/mercusys-ac12-v2-security-advisory/hardcoded-private-key"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received"}

{}

{"created": "2026-10-05T22:00:13.916533+00:00", "title": "Mercusys AC12 V2 Hardcoded RSA Private Key Enables Local Arbitrary Code Execution", "updated": "2026-10-05T22:00:13.916544+00:00", "vendors": [], "weaknesses": ["CWE-798"]}