What is CVE-2025-4106?

CVE-2025-4106 is a vulnerability in Watchguard Fireware Os, classified under Active Debug Code. Published 2025-10-24.

Is CVE-2025-4106 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Watchguard Fireware Os

CVE-2025-4106

An authenticated admin user with access to both the management WebUI and command line interface on a Firebox can enable a diagnostic debug shell by uploading a platform and version-specific diagnostic package and executing a leftover diagnostic command.

EPSS: 0.003 (22.3th percentile) — read the EPSS interpretation.

Affected products

Watchguard Fireware Os — versions 12.0

Weakness classification (CWE)

CWE-489 — Active Debug Code

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

5d1c2695-1a31-4499-88ae-e847036fd7e3 (vendor-advisory)
5d1c2695-1a31-4499-88ae-e847036fd7e3 (vendor-advisory)

Frequently asked questions

What is CVE-2025-4106?: CVE-2025-4106 is a vulnerability in Watchguard Fireware Os, classified under Active Debug Code. Published 2025-10-24.
Is CVE-2025-4106 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.