What is CVE-2020-3116?

CVE-2020-3116 is a vulnerability in Cisco Webex applications that allows an attacker to cause a denial of service (DoS) condition.

How does CVE-2020-3116 occur?

CVE-2020-3116 occurs due to insufficient validation of Universal Communications Format (UCF) media files in Cisco Webex applications.

Which software versions are affected by CVE-2020-3116?

Cisco Webex Meetings Online version 1.3.43 and Cisco WebEx Meetings Server version 4.0 are affected by CVE-2020-3116.

What is the severity of CVE-2020-3116?

CVE-2020-3116 has a severity rating of medium, with a CVSS score of 5.5.

How can CVE-2020-3116 be fixed?

To fix CVE-2020-3116, users should update to the latest version of Cisco Webex Meetings Online or Cisco WebEx Meetings Server.

Vulnerability/
CVE-2020-3116

medium

5.5

CWE

23/9/2020

16/9/2024

CVE-2020-3116: Cisco Webex Centers Denial of Service Vulnerability

First published: Wed Sep 23 2020(Updated: )

A vulnerability in the way Cisco Webex applications process Universal Communications Format (UCF) files could allow an attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of UCF media files. An attacker could exploit this vulnerability by sending a user a malicious UCF 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 would cause the application to quit unexpectedly.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Webex Meetings Online	=1.3.43
Cisco WebEx Meetings Server	=4.0

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200108-webex-centers-dos

Frequently Asked Questions

What is CVE-2020-3116?
CVE-2020-3116 is a vulnerability in Cisco Webex applications that allows an attacker to cause a denial of service (DoS) condition.
How does CVE-2020-3116 occur?
CVE-2020-3116 occurs due to insufficient validation of Universal Communications Format (UCF) media files in Cisco Webex applications.
Which software versions are affected by CVE-2020-3116?
Cisco Webex Meetings Online version 1.3.43 and Cisco WebEx Meetings Server version 4.0 are affected by CVE-2020-3116.
What is the severity of CVE-2020-3116?
CVE-2020-3116 has a severity rating of medium, with a CVSS score of 5.5.
How can CVE-2020-3116 be fixed?
To fix CVE-2020-3116, users should update to the latest version of Cisco Webex Meetings Online or Cisco WebEx Meetings Server.

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canonical/cisco webex meetings online
version/cisco webex meetings online/1.3.43
canonical/cisco webex meetings server
version/cisco webex meetings server/4.0

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