CVE-2026-13376

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in WatchGuard Fireware OS spamBlocker module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-1071. This issue affects Fireware OS 12.0 up to and...

CVE-2026-13375

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in WatchGuard Fireware OS Autotask Technology Integration module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13938. This issue affects Fireware O...

CVE-2026-13377

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in WatchGuard Fireware OS SIP Proxy module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-6947...

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...

CVE-2026-13728

In exception circumstances, WatchGuard Fireware OS on a FireCluster may use a hard-coded encryption key to encrypt saved credentials for Access Portal resources. This vulnerability does not affect devices that do not support the Access Portal feature or standalone Fireboxes not deployed in a...

CVE-2026-13368

WatchGuard Fireware OS contains a race condition leading to a use-after-free vulnerability in LDAP authentication for the Mobile User VPN with IKEv2. A remote unauthenticated attacker could exploit this vulnerability to execute arbitrary code in the context of the iked process on Fireboxes that...

CVE-2026-13722

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...

CVE-2026-13376 WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in spamBlocker Module

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in WatchGuard Fireware OS spamBlocker module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-1071. This issue affects Fireware OS 12.0 up to and...

CVE-2026-13373 WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Tigerpaw Technology Integration Configuration

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in WatchGuard Fireware OS Tigerpaw Technology Integration module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13936...

PT-2026-55337

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 12.1 through 12.12 WatchGuard Fireware OS versions 2025.1 through 2026.2 Description WatchGuard Fireware OS on a FireCluster may use a hard-coded encryption key to encrypt saved credentials for Access Portal...

CVE-2026-3344

A vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS filesystem integrity check and maintain limited persistence via a maliciously-crafted firmware update package.This issue affects Fireware OS 12.0 up to and including 12.11.7, 12.5.9 up to and including...

CVE-2026-3344 WatchGuard Firebox System Integrity Check Bypass

A vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS filesystem integrity check and maintain limited persistence via a maliciously-crafted firmware update package...

EUVD-2026-9290

A vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS filesystem integrity check and maintain limited persistence via a maliciously-crafted firmware update package.This issue affects Fireware OS 12.0 up to and including 12.11.7, 12.5.9 up to and including...

EUVD-2026-9289

A reflected cross-site scripting XSS vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click on a specially crafted link. This vulnerability affects Fireware OS 12.7 up to and including 12.11.7...

CVE-2026-3343

A reflected cross-site scripting XSS vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click on a specially crafted link...

PT-2026-22733

A reflected cross-site scripting XSS vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click on a specially crafted link. This vulnerability affects Fireware OS 12.7 up to and including 12.11.7...

EUVD-2025-201307

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS’s certificate request command could allow an authenticated privileged user to execute arbitrary code via specially crafted CLI commands.This vulnerability affects Fireware OS 12.0 up to and including 12.11.4, 12.5 up to and including...

CVE-2025-13940

An Expected Behavior Violation CWE-440 vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS boot time system integrity check and prevent the Firebox from shutting down in the event of a system integrity check failure. The on-demand system integrity check in the...

CVE-2025-12196

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...

CVE-2025-13939 WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in Gateway Wireless Controller

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in WatchGuard Fireware OS Gateway Wireless Controller module allows Stored XSS...