OS Command Injection in Fireware OS - CVE-2022-26318
Published: December 16, 2025
Vulnerability identifier: #VU119990
CSH Severity: Critical
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2022-26318
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: WatchGuard
Affected software:
Fireware OS
Fireware OS
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation. A remote unauthenticated attacker can send a specially crafted XML-RPC request to the /agent/ endpoint and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2022-26318
Install updates from vendor's website.