A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in the context of an elevated system process.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00009 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.6 · watchguardNVD modified 2026-10-26 21:10
Affected (CPE criteria) 1
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*
References 2
- https://psirt.watchguard.com/CVE-2026-3987 Broken Link
- https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00009 Vendor Advisory