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
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
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- version/cisco webex meetings server/4.0