How severe is CVE-2025-6946?

CVE-2025-6946 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-6946 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-6946?

CVE-2025-6946 affects Watchguard Fireware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-6946?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-6946 have an EU (EUVD) identifier?

Yes. CVE-2025-6946 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201296.

When was CVE-2025-6946 published?

CVE-2025-6946 was published on 2025-12-04 and last updated on 2026-08-08.

CVE-2025-6946

CVE-2025-6946 is a medium-severity vulnerability in Watchguard Fireware with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v4: 4.8
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201296
Weakness: CWE-79
Affected product: Watchguard Fireware
Published: 2025-12-04
Last modified: 2026-08-08

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.

Frequently asked questions

What is CVE-2025-6946?: 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.
How severe is CVE-2025-6946?: CVE-2025-6946 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-6946 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-6946?: CVE-2025-6946 affects Watchguard Fireware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-6946?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-6946 have an EU (EUVD) identifier?: Yes. CVE-2025-6946 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201296.
When was CVE-2025-6946 published?: CVE-2025-6946 was published on 2025-12-04 and last updated on 2026-08-08.

References

Affected products (1)

cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*

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