What is CVE-2020-3131?

CVE-2020-3131 is a vulnerability in the Cisco Webex Teams client for Windows that could allow an authenticated remote attacker to cause the client to crash, resulting in a denial of service (DoS) condition.

Who can exploit CVE-2020-3131?

An authenticated remote attacker with a valid developer account can exploit CVE-2020-3131.

What is the severity of CVE-2020-3131?

CVE-2020-3131 has a severity rating of 6.5 (Medium).

What software is affected by CVE-2020-3131?

The Cisco Webex Teams client for Windows version 3.0.13131 is affected by CVE-2020-3131.

How can I fix CVE-2020-3131?

To fix CVE-2020-3131, it is recommended to update the Cisco Webex Teams client for Windows to a version that addresses the vulnerability.

Vulnerability/
CVE-2020-3131

medium

6.5

CWE

400 20

26/1/2020

17/9/2024

CVE-2020-3131: Cisco Webex Teams Adaptive Cards Denial of Service Vulnerability

First published: Sun Jan 26 2020(Updated: )

A vulnerability in the Cisco Webex Teams client for Windows could allow an authenticated, remote attacker to cause the client to crash, resulting in a denial of service (DoS) condition. The attacker needs a valid developer account to exploit this vulnerability. The vulnerability is due to insufficient input validation when processing received adaptive cards. The attacker could exploit this vulnerability by sending an adaptive card with malicious content to an existing user of the Cisco Webex Teams client for Windows. A successful exploit could allow the attacker to cause the targeted user's client to crash continuously. This vulnerability was introduced in Cisco Webex Teams client for Windows Release 3.0.13131.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Webex Teams	<=3.0.13131
Microsoft Windows

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-cards-dos-FWzNcXPq

Frequently Asked Questions

What is CVE-2020-3131?
CVE-2020-3131 is a vulnerability in the Cisco Webex Teams client for Windows that could allow an authenticated remote attacker to cause the client to crash, resulting in a denial of service (DoS) condition.
Who can exploit CVE-2020-3131?
An authenticated remote attacker with a valid developer account can exploit CVE-2020-3131.
What is the severity of CVE-2020-3131?
CVE-2020-3131 has a severity rating of 6.5 (Medium).
What software is affected by CVE-2020-3131?
The Cisco Webex Teams client for Windows version 3.0.13131 is affected by CVE-2020-3131.
How can I fix CVE-2020-3131?
To fix CVE-2020-3131, it is recommended to update the Cisco Webex Teams client for Windows to a version that addresses the vulnerability.

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vendor/cisco
canonical/cisco webex teams
version/cisco webex teams/3.0.13131
vendor/microsoft
canonical/microsoft windows

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