CVE-2023-20209 MEDIUM

CVE-2023-20209

Vendor Cisco
Product Cisco TelePresence Video Communication Server (VCS) Expressway
Weakness CWE-94 · Code injection
Published August 16, 2023
Last update December 16, 2025

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with read-write privileges on the application to perform a command injection attack that could result in remote code execution on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to establish a remote shell with root privileges.

Key dates

02Disclosure timeline

August 16, 2023 CVE published
December 16, 2025 Record updated

Related vulnerabilities

04Related CVE