{"id":"CVE-2026-121818","title":"About Time Technologies｜Herowatch Go - Security Misconfiguration","summary":"Herowatch Mini developed by About Time Technologies has a system signing vulnerability. Authenticated local attackers can exploit a publicly available test key to sign malicious programs, allowing them to elevate privileges and execute a…","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","cvssSource":"cna","cwe":["CWE-1394"],"vendor":"About Time Technologies","product":"Herowatch Go","affected":["herowatch_go all"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-11-04T18:28:13.244033Z"},"published":"2026-11-04","updated":"2026-11-04","sourceUpdated":"2026-11-04T20:00:58.496Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121818","references":[{"url":"https://www.twcert.org.tw/en/cp-139-11362-1e829-2.html"},{"url":"https://www.twcert.org.tw/tw/cp-132-11360-ab123-1.html"}],"tags":["cve.org"],"epss":0.00129,"epssPercentile":0.02518,"ingestedAt":"2026-11-05T21:36:00.525Z","slug":"CVE-2026-121818","body":"## Overview\n\nHerowatch Mini developed by About Time Technologies has a system signing vulnerability. Authenticated local attackers can exploit a publicly available test key to sign malicious programs, allowing them to elevate privileges and execute arbitrary code.\n\n## Affected\n\n- `herowatch_go all`\n\n## Remediation\n\nThe product is no longer maintained. Users are advised to replace it with a supported device.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}