CVE-2020-3501: Cisco Webex Meetings

Medium severity, CVSS 4.1. EPSS: 1% chance of exploitation in the next 30 days.

Multiple vulnerabilities in the user interface of Cisco Webex Meetings Desktop App could allow an authenticated, remote attacker to obtain restricted information from other Webex users. These vulnerabilities are due to improper input validation of parameters returned to the application from a web site. An attacker with a valid Webex account could exploit these vulnerabilities by persuading a user to follow a URL that is designed to return malicious path parameters to the affected software. A successful exploit could allow the attacker to obtain restricted information from other Webex users.

Affected products

• Cisco Webex Meetings: before 39.5.24 (fixed in 39.5.24); from 40.4.0, before 40.4.6 (fixed in 40.4.6); from 40.4.10, before 40.6.0 (fixed in 40.6.0); version 39.7.4 only
• Cisco Webex Meetings Server: version 3.0 only; version 4.0 only

Published 2020-08-17. Last modified 2026-06-17.