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 vulnerability affects Fireware OS 12.7 up to and including 12.11.7 and 2025.1 up to and including 2026.1.1.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 03 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 03 Mar 2026 13:45:00 +0000

Type Values Removed Values Added
Description 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 vulnerability affects Fireware OS 12.7 up to and including 12.11.7 and 2025.1 up to and including 2026.1.1.
Title WatchGuard Firebox Reflected Cross-Site-Scripting (XSS) Vulnerability in Fireware Web UI
First Time appeared Watchguard
Watchguard fireware Os
Weaknesses CWE-79
CPEs cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:12.7
cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:2025.1
Vendors & Products Watchguard
Watchguard fireware Os
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: WatchGuard

Published:

Updated: 2026-03-03T14:45:43.348Z

Reserved: 2026-02-27T15:37:10.115Z

Link: CVE-2026-3343

cve-icon Vulnrichment

Updated: 2026-03-03T14:45:31.213Z

cve-icon NVD

Status : Received

Published: 2026-03-03T14:15:57.687

Modified: 2026-03-03T14:15:57.687

Link: CVE-2026-3343

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses