Fortinet Discovers Cisco WebEx Network Recording Player Arbitrary Code Execution Vulnerability


Fortinet's FortiGuard Labs has discovered an Arbitrary Code Execution vulnerability in Cisco WebEx Network Recording Player and WebEx Player.

Cisco WebEx Network Recording Player and WebEx Player are free tools to watch, share, and edit Cisco WebEx recordings developed and published by Cisco Systems for macOS and Windows.

An Arbitrary Code Execution vulnerability has been discovered in Cisco WebEx Network Recording Player and WebEx Player. The vulnerability exists because the vulnerable software can't correctly parse a crafted Advanced Recording Format (ARF) and Webex Recording Format (WRF) files.


FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Released Mar 14, 2019

Users should apply the solution provided by Cisco.


Fortinet reported the vulnerability to Cisco on February 12, 2019.

Cisco confirmed the vulnerability on March 5, 2019.

Cisco released patch for the vulnerability on May 15, 2019.


This vulnerability was discovered by Yici Wang of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.