XSS in Watchguard Fireware Os

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 vulner…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (14.0th percentile) — read the EPSS interpretation.