CVE-2020-3322: Cisco Webex Network Recording Player

Low severity, CVSS 3.3. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability in Cisco Webex Network Recording Player and Cisco Webex Player for Microsoft Windows could allow an attacker to cause a process crash resulting in a Denial of service (DoS) condition for the player application on an affected system. The vulnerability exists due to insufficient validation of certain elements with a Webex recording stored in either the Advanced Recording Format (ARF) or the Webex Recording Format (WRF). An attacker could exploit this vulnerability by sending a user a malicious ARF or WRF file through a link or email attachment and persuading the user to open the file with the affected software on the local system. A successful exploit could allow the attacker to cause the Webex player application to crash when trying to view the malicious file.

Affected products

• Cisco Webex Network Recording Player: affected versions not specified
• Cisco Webex Player: affected versions not specified

Published 2020-06-03. Last modified 2026-06-17.