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

9.9 CVSS

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.

Classification

CVE ID: CVE-2025-20156

CVSS Base Severity: CRITICAL

CVSS Base Score: 9.9

Affected Products

Vendor: Cisco

Product: Cisco Meeting Management

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.97% (scored less or equal to compared to others)

EPSS Date: 2025-02-21 (when was this score calculated)

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cmm-privesc-uy2Vf8pc
https://blog.clamav.net/2025/01/clamav-142-and-108-security-patch.html
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-ole2-H549rphA

Timeline