CVE-2025-20236
Cisco Webex App Client-Side Remote Code Execution Vulnerability
Description
A vulnerability in the custom URL parser of Cisco Webex App could allow an unauthenticated, remote attacker to persuade a user to download arbitrary files, which could allow the attacker to execute arbitrary commands on the host of the targeted user. This vulnerability is due to insufficient input validation when Cisco Webex App processes a meeting invite link. An attacker could exploit this vulnerability by persuading a user to click a crafted meeting invite link and download arbitrary files. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the targeted user.
Weakness: CWE-829
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Webex | Other Products | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Webex Teams
Vendor advisory
cisco-sa-webex-app-client-rce-ufyMMYLC
Cisco Webex App Client-Side Remote Code Execution Vulnerability
Cisco’s rating: High (advisory CVSS 8.8) · Published Apr 16, 2025
Bug ID: CSCwn07296
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from