CVE-2025-6999

published 2025-09-15

CVE-2025-6999: An HTTP Request Smuggling [CWE-444] vulnerability in the Authentication portal of WatchGuard Fireware OS allows a remote attacker to evade request parameter…

Priority P3 37 medium 6.9 CVSS 4.0

AV N AC L AT N PR N UI N VC L VI L VA N SC N SI N SA N E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
watchguard	fireware_os	>= 12.0 < 12.11.3	12.11.3

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CWE-444