CVE-2026-3987: Improper Limitation of a Pathname to a Restricted Directory

A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in the context of an elevated system process...

PT-2026-29023

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 11.8 through 11.12.4+541730 WatchGuard Fireware OS versions 12.0 through 12.11.8 WatchGuard Fireware OS versions 2025.1 through 2026.1.2 Description A Cross-Site Request Forgery CSRF issue in the Fireware OS Web...

CVE-2026-3343: Improper Neutralization of Input During Web Page Generation

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...