WatchGuard Fireware OS contains a firmware validation bypass when processing a backup image via the backup/restore feature. An authenticated administrator can exploit this vulnerability to install a tampered firmware image.CreditsDiscovered internally by WatchGuardReferenceshttps://psirt.watchguard.com/CVE-2026-13722https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00022
