4.8

CVE-2025-6946: watchguard fireware Cross-site Scripting

CVSS: 4.8v4.0MediumModified
Published 04-12-2025Last modified 08-08-2026
Open JSON

Vulnerability summary

CVE-2025-6946 is a medium (CVSS 4.8) Cross-site Scripting vulnerability in watchguard fireware. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.9% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-12-2025
    PublishedVulnerability first disclosed.
  2. 08-08-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Watchguard2 products
  • fireware≥ 12.0.0, < 12.11.3 | ≥ 12.5, < 12.5.13
  • fireware os≥ 12.0, < 12.11.3 | ≥ 12.0, < 12.5.13

1 vendor · 2 products

References

2 links