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. This vulnerability affects Fireware OS 12.7 up to and including 12.11.7...

CVE-2026-3342

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...

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

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-2026-3343

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. This vulnerability affects Fireware OS 12.7 up to and including 12.11.7...

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-2026-3343

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. This vulnerability affects Fireware OS 12.7 up to and including 12.11.7...

CVE-2026-3342

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...

CVE-2026-3342

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...

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.This issue affects Fireware OS 12.0 up to and including 12.11.7, 12.5.9 up to and including...

CVE-2026-3344

Watching WatchGuard Fireware OS has a vulnerability (CVE-2026-3344) that allows bypassing the filesystem integrity check and maintaining limited persistence via a maliciously-crafted firmware update package. Affected versions are: Fireware OS 12.0–12.11.7, 12.5.9–12.5.16, and 2025.1–2026.1.1. The...

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.This issue affects Fireware OS 12.0 up to and including 12.11.7, 12.5.9 up to and including...

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 WatchGuard Firebox Reflected Cross-Site-Scripting (XSS) Vulnerability in Fireware Web UI

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 WatchGuard Firebox Reflected Cross-Site-Scripting (XSS) Vulnerability in Fireware Web UI

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. This vulnerability affects Fireware OS 12.7 up to and including 12.11.7...

CVE-2026-3342 WatchGuard Firebox Out of Bounds Write Vulnerability

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...

EUVD-2026-9288

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...

CVE-2026-3342 WatchGuard Firebox Out of Bounds Write Vulnerability

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4Update1, 12.0 up to and...