{"id":"CVE-2026-78860","title":"An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the storage of information in plaintext","summary":"An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the storage of information in plaintext","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-311","CWE-347"],"published":"2026-10-05","updated":"2026-10-06","sourceUpdated":"2026-10-06T15:17:19.500","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-78860","references":[{"url":"http://mercusys.com","label":"cve@mitre.org"},{"url":"https://threadpoolx.gitbook.io/docs/cve/mercusys-ac12-v2-security-advisory/missing-firmware-encryption-and-secure-boot-mechanisms","label":"cve@mitre.org"},{"url":"https://threadpoolx.gitbook.io/docs/cve/mercusys-ac12-v2-security-advisory/missing-firmware-encryption-and-secure-boot-mechanisms","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-10-06T14:47:29.866611Z"},"ingestedAt":"2026-10-05T19:30:59.999Z","epss":0.00123,"epssPercentile":0.02068,"slug":"CVE-2026-78860","body":"## Overview\n\nAn issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the storage of information in plaintext\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":216500,"id":"CVE-2026-78860","ts":1791299018625,"field":"exploit_available","old":"false","new":"true"},{"seq":216499,"id":"CVE-2026-78860","ts":1791299018625,"field":"cvss","old":null,"new":"7.8"},{"seq":216498,"id":"CVE-2026-78860","ts":1791299018625,"field":"severity","old":"none","new":"high"}]}