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Description

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.This issue affects Fireware OS: from 12.0 through 12.11.2.

PUBLISHED Reserved 2025-07-02 | Published 2025-09-15 | Updated 2025-09-16 | Assigner WatchGuard




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Product status

Default status
unaffected

12.0 (semver)
affected

References

www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00014

cve.org (CVE-2025-6999)

nvd.nist.gov (CVE-2025-6999)

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