CVE-2022-26318
Published: March 25, 2022
Official Description
On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code.
CISA KEV Advisory
WatchGuard Firebox and XTM Appliances Arbitrary Code Execution
On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability in WatchGuard Firebox and XTM appliances allows an unauthenticated user to execute arbitrary code. The high EPSS score of 0.92232 indicates a very high likelihood of exploitation. This vulnerability is confirmed to be actively exploited, making it an urgent security concern.
This vulnerability is actively exploited in the wild and is listed in CISA's Known Exploited Vulnerabilities catalog. It allows for unauthenticated remote code execution.
WatchGuard Firebox and XTM appliance administrators should immediately apply the latest security patches and firmware updates. Restrict network access to management interfaces and monitor for suspicious activity.
Technical Analysis
CVE-2022-26318 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2022-26318 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-26318 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1