Cisco has warned about a new privilege escalation vulnerability in its Meeting Management tool that could allow a remote attacker to gain administrator privileges on exposed instances.
The vulnerability, CVE-2025-20156 was disclosed by Cisco on January 22 and is awaiting further analysis by the US National Vulnerability Database (NVD)
OEM | Cisco |
Severity | Critical |
CVSS | 9.9 |
CVEs | CVE-2025-20156 |
Exploited in Wild | No |
Patch/Remediation Available | Yes |
Advisory Version | 1.0 |
Overview
A critical vulnerability (CVE-2025-20156) in Cisco Meeting Management could allow attackers to gain unauthorized administrative access. This issue affects versions prior to 3.9.1 and has been classified as critical. Cisco strongly recommends updating to the latest fixed version to address this risk.
Vulnerability Name | CVE ID | Product Affected | Severity |
Privilege Escalation Vulnerability | CVE-2025-20156 | Cisco | Critical |
Technical Summary
A critical security vulnerability has been identified in Cisco Meeting Management. This flaw resides in the REST API and stems from improper enforcement of authorization protocols for REST API users. Remote, authenticated attackers with low-level privileges can exploit this issue by sending specially crafted API requests to specific endpoints. A successful exploit could allow attackers to escalate their privileges to administrator level and gain control over edge nodes managed by Cisco Meeting Management.
CVE ID | System Affected | Vulnerability Details | Impact |
CVE-2025-20156 | Cisco Meeting Management prior to version 3.9.1 | Insufficient authorization checks in the REST API allow attackers to send crafted API requests to escalate privileges. | Attackers can gain full administrative control and disrupt business operations. |
Remediation:
Conclusion:
CVE-2025-20156 poses a critical risk to Cisco Meeting Management users. Exploiting this flaw could disrupt operations by granting attacker’s administrative control. Immediate updates are crucial to mitigate the risk and protect affected systems.
References: