CVE-2022-26318
WatchGuard Firebox and XTM Appliances Arbitrary Code Execution
- Critical 9.8
- Exploited: added to CISA KEV 25 Mar 2022
Description
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.
Key facts
- Published
- 4 Mar 2022
- Last changed
- 21 Oct 2025
- Assigned by
- mitre
- KEV added
- 25 Mar 2022
- KEV fix due
- 15 Apr 2022
- EPSS
- 78.157% likely to be exploited in the next 30 days, higher than 99.583% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: yes; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 9.8CVSS 3.1, Criticalfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 4 Mar 2022 Published
- 25 Mar 2022 CVE-2022-26318 added to CISA KEV
- 25 Mar 2022 Added to the CISA KEV catalogue