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

Critical 9.9 Published Updated

Authenticated low-privilege attackers can escalate to administrator via REST API due to missing authorization checks in Cisco Meeting Management.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-20156?

CVE-2025-20156 is a critical vulnerability in Cisco Meeting Management, published on 22 Jan 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-274

Which versions are affected by CVE-2025-20156?

It affects 1 product.

Products include Cisco Meeting Management.

How do I fix CVE-2025-20156?

No fix has been published for CVE-2025-20156 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-20156 being exploited?

There is no known exploitation of CVE-2025-20156 in the wild and no public exploit code.

Sources

Also known as GHSA-8m34-ghfg-xxc2.

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