8.6High
CVE-2026-13722WatchGuard Firebox Firmware Image Validation Bypass in WatchGuard Fireware OS
Description
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.
Weakness (CWE):
CWE-347
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| watchguard | fireware | 2025.1 – < 2026.2.1 | |
| WatchGuard | Fireware OS | 2025.1 – < 2026.2.1, 12.0 – < 12.12.1, 11.0 – ≤ 11.12.4+541730 |
References and patches
- https://psirt.watchguard.com/CVE-2026-13722 vendor-advisoryBroken Link
- https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00022 vendor-advisoryVendor Advisory
CPE matches (NVD) (6)
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*≥ 2025.1 < 2026.2.1cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*≥ 12.5 ≤ 12.5.18cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*≥ 12.0 < 12.12.1cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*≥ 11.0.0 < 11.12.4cpe:2.3:o:watchguard:fireware:11.12.4:-:*:*:*:*:*:*cpe:2.3:o:watchguard:fireware:11.12.4:u1:*:*:*:*:*:*