Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 78.2%; technical severity is CVSS 9.8.
On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code, aka FBX-22786. This vulnerability impacts Fireware OS before 12.7.2_U2, 12.x before 12.1.3_U8, and 12.2.x through 12.5.x before 12.5.9_U2.
Who should care
- Teams operating Firebox and XTM Appliances, Fireware
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Firebox and XTM Appliances, Fireware is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- WatchGuard Security release notes
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-122
- Affected versions
- Watchguard Firebox and XTM Appliances; Watchguard Fireware (Start Including 12.0.0, End Excluding 12.1.3 | Start Including 12.5, End Excluding 12.5.9 | Start Including 12.7.0, End Excluding 12.7.2 | Version 12.1.3)
- Fixed versions
- Watchguard Fireware (Fixed from 12.1.3, 12.5.9, 12.7.2)
- Published
- 4 March 2022
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 78.2%
- Signal calculated at 83