CVE-2026-13053: WatchGuard Firebox Authenticated Out of Bounds Write in Management CLI Command Handler
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.
This vulnerability affects Fireware OS 11.0 up to and including 11.12.4Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-13053?
CVE-2026-13053 has a high severity rating of 8.6.
How do I fix CVE-2026-13053?
To fix CVE-2026-13053, update your WatchGuard Fireware OS to the latest security patch provided by WatchGuard.
What systems are affected by CVE-2026-13053?
CVE-2026-13053 affects WatchGuard Fireware OS versions from 11.0 to 11.12.4_Update1, 12.0 to 12.12, and 2025.1.
What type of vulnerability is CVE-2026-13053?
CVE-2026-13053 is classified as an Out-of-bounds Write vulnerability.
Can CVE-2026-13053 allow unauthorized access?
CVE-2026-13053 requires authenticated privileged user access to exploit, but it can allow execution of arbitrary code.