Medium 4.8Published Dec 4, 2025

CVE-2025-6946WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in IPS Configuration

Updated under an hour ago (Oct 26, 2026, 8:20 PM ET)

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It affects WatchGuard Fireware OS and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

A stored cross-site scripting (XSS) vulnerability exists in the management interface of WatchGuard Firebox appliances via the IPS configuration. An authenticated remote attacker with administrator privileges could exploit this vulnerability to execute arbitrary JavaScript code in the Firebox management ninterface of another management user.

CVSS: 4.8 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: WatchGuard
NVD analysis: Modified
Record last updated: Aug 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

WatchGuard Fireware OS watchguard:fireware_os (from the name)	from 12.0 before 12.11.3	CNA record
watchguard fireware watchguard:fireware	from 12.0.0 before 12.11.3; from 12.5 before 12.5.13	NVD

References

References

https://psirt.watchguard.com/CVE-2025-6946	vendor-advisory
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00011	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.