8.6High
CVE-2026-13053WatchGuard Firebox Authenticated Out of Bounds Write in Management CLI Command Handler
Description
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS's CLI could allow an authenticated privileged user to execute arbitrary code via a specially crafted CLI command.
Weakness (CWE):
CWE-787
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 | 11.0 – < 12.12.1 | |
| WatchGuard | Fireware OS | 2025.1 – < 2026.2.1, 12.0 – < 12.12.1, 11.0 |
References and patches
- https://psirt.watchguard.com/CVE-2026-13053 vendor-advisory
- https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00030 vendor-advisoryVendor Advisory
CPE matches (NVD) (3)
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*≥ 11.0 < 12.12.1cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*≥ 2025.1 < 2026.2.1cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*≥ 11.0 ≤ 12.5.18