CVE-2019-1939: Cisco Webex Teams Logging Feature Command Execution Vulnerability

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-09-05 · updated 2026-06-17
Weakness: CWE-74

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.

Affected products

Cisco Webex Teams: before 3.0.12427.0 — fixed in 3.0.12427.0

How to fix

Upgrade to a fixed version: Cisco Webex Teams 3.0.12427.0. Check the vendor advisory for mitigations.

References

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