Vulnerability · 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
Published Oct 24, 2025 · catalog updated Aug 8, 2026 · WatchGuard Fireware OS
Last checked Oct 30, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-4106. EPSS is 0.32%. Act only if a listed version of WatchGuard Fireware OS is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-1547 · High
- CVE-2025-6946 · Medium
- CVE-2025-1545 · High
- CVE-2025-11838 · High
- CVE-2025-13940 · Medium
- Severity
- High8.9
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.32%
- Remediation
- Version ranges on file
- Affected products
- vendor WatchGuard Fireware OS 12.0 <12.5.13
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor WatchGuard Fireware OS 12.0 <12.5.1312.0 <12.5.13
How to fix CVE-2025-4106
Upgrade
CVE-2025-4106 lists a fix boundary at 12.5.13. Compare the installed build with that boundary before you change production.
Version check
Seen in 12.0 <12.5.13
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-4106. EPSS is 0.32%. Act only if a listed version of WatchGuard Fireware OS is installed.
Which versions are affected?
Compare what you have installed with WatchGuard Fireware OS 12.0 <12.5.13 12.0 <12.5.13. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.32%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 24, 2025 · EUVD
Detected
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.
Aug 8, 2026 · EUVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2025-4106
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-4106
30-day exploitation probability 0.32%
first.org - EUVDVulnerability recordEUVD-2025-35898
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.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 30, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 30, 2026
- CVE.orgOct 23, 2026
- EUVDOct 23, 2026