{"id":"CVE-2026-90464","aliases":[],"title":"Fireware OS Missing Command Validation allows Authenticated Arbitrary File Modification as Root","description":"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values.","severity":"high","score":7.2,"published":"2026-10-27T15:52:28.267Z","modified":"2026-10-27T15:52:28.267Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://psirt.watchguard.com/CVE-2026-90464"],"sources":[{"name":"CVE","id":"CVE-2026-90464","modified":"2026-10-27T15:52:28.267Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-90464"}],"assessments":[{"source":"CNA","vector":"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","score":7.2}]}