CVE-2025-6999#
WatchGuard Firebox Authentication Portal Request Smuggling Vulnerability
Summary #
An HTTP Request Smuggling [CWE-444] vulnerability in the Authentication portal of WatchGuard Fireware OS allows a remote attacker to evade request parameter sanitation and perform a reflected self-Cross-Site Scripting (XSS) attack.
WatchGuard does not believe there is a practical exploit chain with a meaningful security impact for this vulnerability.
Product status #
| Product | Affected | Not affected |
|---|---|---|
| Fireware OS | >= 12.0, < 12.11.3 | >= 12.11.3 |
Weakness Type and Impact #
Exploitation Status #
WatchGuard is not aware of any exploitation of this vulnerability in the wild.
Solution #
Fireware OS 12.11.3