WatchGuard Firebox and XTM Appliances Arbitrary Code Execution

Added to KEV
2022-03-25
Federal due date
2022-04-15
Vendor
WatchGuard
Product
Firebox and XTM Appliances
EPSS
99.8th percentile (score 0.925, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2022-26318

CISA short description

On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.