{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90464","assignerOrgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","state":"PUBLISHED","assignerShortName":"WatchGuard","dateReserved":"2026-09-11T22:55:27.707Z","datePublished":"2026-10-27T15:52:28.267Z","dateUpdated":"2026-10-27T15:52:28.267Z"},"containers":{"cna":{"providerMetadata":{"orgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","shortName":"WatchGuard","dateUpdated":"2026-10-27T15:52:28.267Z"},"title":"Fireware OS Missing Command Validation allows Authenticated Arbitrary File Modification as Root","descriptions":[{"lang":"en","value":"An external control of file path vulnerability in a WatchGuard Fireware OS firewall diagnostic command allows a remote, authenticated attacker with at least read-only (Device Monitor) privileges and access to the management CLI to create, truncate, or overwrite arbitrary files and modify kernel parameters with root privileges by submitting a specially crafted command. Written content is limited to numeric values."}],"affected":[{"vendor":"WatchGuard","product":"Fireware OS","versions":[{"status":"affected","version":"2025.1","versionType":"custom","lessThan":"2026.4"},{"status":"affected","version":"12.0","versionType":"custom","lessThan":"12.12.4"}],"defaultStatus":"unaffected","platforms":["Default"]},{"vendor":"WatchGuard","product":"Fireware OS","versions":[{"status":"affected","version":"12.0","versionType":"custom","lessThan":"12.5.22"}],"defaultStatus":"unaffected","platforms":["T15/T35"]}],"references":[{"url":"https://psirt.watchguard.com/CVE-2026-90464","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":"12.5.22"},{"vulnerable":true,"criteria":"cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*","versionStartIncluding":"2025.1","versionEndExcluding":"2026.4"},{"vulnerable":true,"criteria":"cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*","versionStartIncluding":"12.0","versionEndExcluding":"12.12.4"}]}]}],"metrics":[{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","baseScore":7.2,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-59","type":"CWE","cweId":"CWE-59"},{"lang":"en","description":"CWE-73","type":"CWE","cweId":"CWE-73"},{"lang":"en","description":"CWE-732","type":"CWE","cweId":"CWE-732"}]}],"credits":[{"lang":"en","value":"WatchGuard AI Security Research","type":"finder"}],"solutions":[{"lang":"en","value":"Fireware OS 2026.4, Fireware OS 12.12.4, Fireware OS 12.5.22","supportingMedia":[{"type":"text/html","base64":false,"value":"Fireware OS 2026.4, Fireware OS 12.12.4, Fireware OS 12.5.22"}]}],"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."}]}]}}}