CVE-2025-20179: Cisco Telepresence Video Communication Server Vcs Expressway

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco Expressway Series could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. Note: Cisco Expressway Series refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.

Affected products

• Cisco Cisco Telepresence Video Communication Server Vcs Expressway: version X8.11.2 only; version X8.6 only; version X8.11.3 only; version X8.2.2 only; version X8.8.3 only; version X8.11.0 only; …

Published 2025-02-05. Last modified 2026-06-17.