{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-13086","assignerOrgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","state":"PUBLISHED","assignerShortName":"WatchGuard","dateReserved":"2026-06-23T18:45:34.589Z","datePublished":"2026-08-27T23:24:32.779Z","dateUpdated":"2026-09-03T20:49:56.053Z"},"containers":{"cna":{"providerMetadata":{"orgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","shortName":"WatchGuard","dateUpdated":"2026-09-03T20:49:56.053Z"},"title":"Fireware OS Stack-Based Buffer Overflow in Mobile Security epm Endpoint","descriptions":[{"lang":"en","value":"A stack-based buffer overflow in the epm (Endpoint Protection Manager) service used by the deprecated Mobile Security feature in WatchGuard Fireware OS allows an unauthenticated remote attacker to execute arbitrary code."}],"affected":[{"vendor":"WatchGuard","product":"Fireware OS","versions":[{"status":"affected","version":"2025.0","versionType":"custom","lessThan":"2026.2.2"},{"status":"affected","version":"12.0","versionType":"custom","lessThan":"12.12.2"},{"status":"affected","version":"2026.3","versionType":"custom","lessThan":"2026.3.1"}],"defaultStatus":"unaffected","platforms":["Default"]},{"vendor":"WatchGuard","product":"Fireware OS","versions":[{"status":"affected","version":"12.0","versionType":"custom","lessThan":"12.5.20"}],"defaultStatus":"unaffected","platforms":["T15/T35"]}],"references":[{"url":"https://psirt.watchguard.com/CVE-2026-13086","tags":["vendor-advisory"]}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*","versionStartIncluding":"12.0","versionEndExcluding":"12.5.20"},{"vulnerable":true,"criteria":"cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*","versionStartIncluding":"2025.0","versionEndExcluding":"2026.2.2"},{"vulnerable":true,"criteria":"cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*","versionStartIncluding":"12.0","versionEndExcluding":"12.12.2"},{"vulnerable":true,"criteria":"cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*","versionStartIncluding":"2026.3","versionEndExcluding":"2026.3.1"}]}]}],"metrics":[{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","baseScore":9.3,"baseSeverity":"CRITICAL"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-121","type":"CWE","cweId":"CWE-121"},{"lang":"en","description":"CWE-787","type":"CWE","cweId":"CWE-787"},{"lang":"en","description":"CWE-798","type":"CWE","cweId":"CWE-798"}]}],"credits":[{"lang":"en","value":"Mat Powell of TrendAI Zero Day Initiative","type":"finder"}],"configurations":[{"lang":"en","value":"By default, the epm service is only reachable on Trusted interfaces on devices where the deprecated Mobile Security is enabled.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>By default, the epm service is only reachable on Trusted interfaces on devices where the deprecated Mobile Security is enabled.</p>"}]}],"solutions":[{"lang":"en","value":"Fireware OS 2026.3.1, Fireware OS 2026.2.2, Fireware OS 12.12.2, Fireware OS 12.5.20","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Fireware OS 2026.3.1, Fireware OS 2026.2.2, Fireware OS 12.12.2, Fireware OS 12.5.20</p>"}]}],"exploits":[{"lang":"en","value":"WatchGuard is not aware of any exploitation of this vulnerability in the wild.","supportingMedia":[{"type":"text/html","base64":false,"value":"WatchGuard is not aware of any exploitation of this vulnerability in the wild."}]}],"timeline":[{"time":"2026-09-03T00:00:00.000Z","lang":"en","value":"Added Fireware OS 2026.3.1 as a fixed version"}],"datePublic":"2026-08-27T23:24:37.717Z"},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-28T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-13086"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-29T03:55:57.210Z"}}]}}