CVE-2025-20156: Cisco Meeting Management Client-Server Privilege Escalation Vulnerability

Vulnerability summary

CVE-2025-20156 is a critical (CVSS 9.9) vulnerability in cisco cisco meeting management. EPSS estimates a 1.19% chance of exploitation in the next 30 days, higher than 67.8% of scored vulnerabilities.

Timeline

1. 22-01-2025
   PublishedVulnerability first disclosed.
2. 26-02-2026
   Last modifiedVulnerability information updated.

Description

A vulnerability in the REST API of Cisco Meeting Management could allow a remote, authenticated attacker with low privileges to elevate privileges to administrator on an affected device. This vulnerability exists because proper authorization is not enforced upon REST API users. An attacker could exploit this vulnerability by sending API requests to a specific endpoint. A successful exploit could allow the attacker to gain administrator-level control over edge nodes that are managed by Cisco Meeting Management.

• CWE-274Improper Handling of Insufficient PrivilegesThe product does not handle or incorrectly handles when it has insufficient privileges to perform an operation.