CVE-2022-26318
WatchGuard Firebox and XTM Appliances Arbitrary Code Execution
- Published
- Mar 4, 2022
- Updated
- Oct 21, 2025
- Assigning CNA
- mitre
- Evidence observed
- Mar 25, 2022
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.6%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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.
Sources
4PoC for Watchguard CVE-2022-26318 updated to Python3.12
- watchguard_cve-2022-26318Exploit
Proof-of-concept exploit for CVE-2022-26318, a remote code execution vulnerability in WatchGuard XTM and FireWare OS, delivering a reverse shell via a crafted HTTP POST request.
Watchguard RCE POC CVE-2022-26318
Responsible use
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