OS Command Injection in Cisco Expressway and TelePresence Video Communication Server (VCS) - CVE-2022-20755
Published: March 2, 2022
Vulnerability identifier: #VU60967
CSH Severity: Medium
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-20755
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to insufficient input validation of user-supplied command arguments. A remote authenticated user can execute arbitrary commands with root privileges.
Affected software
Cisco Expressway
TelePresence Video Communication Server (VCS)
TelePresence Video Communication Server (VCS)
How to mitigate CVE-2022-20755
Install updates from vendor's website.
Cisco Expressway - update to X14.0.5
TelePresence Video Communication Server (VCS) - update to X14.0.5
TelePresence Video Communication Server (VCS) - update to X14.0.5