CVE-2025-20236

Name: CVE-2025-20236
Creator: NVD / NIST
Published: 2025-04-16T17:15:49.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2025-20236 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.91%

55.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-829

Affected Software

Vendor	Product	Versions
Cisco	Webex Teams	44.6
Cisco	Webex Teams	44.6.0.29928
Cisco	Webex Teams	44.6.0.30148
Cisco	Webex Teams	44.7
Cisco	Webex Teams	44.7.0.30141
Cisco	Webex Teams	44.7.0.30285

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-app-client-rce-ufyMMYLCVendor Advisory

Timeline

Published: Apr 16, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-20236?

How severe is CVE-2025-20236?

CVE-2025-20236 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2025-20236?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-20236?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST