CVE-2019-1939 Cisco Webex Teams Logging Feature Command Execution Vulnerability
Remote attackers can execute arbitrary commands on Windows systems by tricking users into visiting malicious websites that exploit Webex Teams logging features.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-1939?
CVE-2019-1939 is a high-severity command injection vulnerability in Cisco Webex Teams, published on 5 Sep 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability in the Cisco Webex Teams client for Windows could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected system. This vulnerability is due to improper restrictions on software logging features used by the application on Windows operating systems. An attacker could exploit this vulnerability by convincing a targeted user to visit a website designed to submit malicious input to the affected application. A successful exploit could allow the attacker to cause the application to modify files and execute arbitrary commands on the system with the privileges of the targeted user.
Which versions are affected by CVE-2019-1939?
It affects 1 product.
Products include Cisco Webex Teams.
How do I fix CVE-2019-1939?
No fix has been published for CVE-2019-1939 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2019-1939 being exploited?
There is no known exploitation of CVE-2019-1939 in the wild and no public exploit code.
Other vulnerabilities in Cisco Webex Teams
- CVE-2025-20236 Cisco Webex App Client-Side Remote Code Execution Vulnerability
- CVE-2018-0387 Code injection in Cisco Webex Teams unknown
- CVE-2018-0436 Cisco Webex Teams Information Disclosure and Modification Vulnerability
- CVE-2020-3535 Cisco Webex Teams Client for Windows DLL Hijacking Vulnerability
- CVE-2019-1636 Cisco Webex Teams URI Handler Insecure Library Loading Vulnerability
Sources
Also known as GHSA-w3v7-95f2-5pgr.