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

Quick assessment

Affected
Cisco Cisco Meeting Management
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Meeting Management（CMM）是美国思科（Cisco）公司的一个 Cisco 本地视频会议平台 Cisco Meeting Server 的管理工具。 Cisco Meeting Management存在安全漏洞，该漏洞源于REST API用户授权不足，导致低权限认证远程攻击者可通过发送API请求到特定端点提升至管理员权限。

CVSS 9.9 · Critical EPSS 1.19% · P67

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-20156

Vulnerability Information
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Vulnerability Title
Cisco Meeting Management Client-Server Privilege Escalation Vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不充分特权处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Meeting Management 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Meeting Management（CMM）是美国思科（Cisco）公司的一个 Cisco 本地视频会议平台 Cisco Meeting Server 的管理工具。 Cisco Meeting Management存在安全漏洞，该漏洞源于REST API用户授权不足，导致低权限认证远程攻击者可通过发送API请求到特定端点提升至管理员权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Meeting Management CMM3.4.0 -

II. Public POCs for CVE-2025-20156

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III. Intelligence Information for CVE-2025-20156

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Vendor Advisories for CVE-2025-20156 (2)

Security Blog Posts for CVE-2025-20156 (1)

Same Patch Batch · Cisco · 2025-01-22 · 3 CVEs total

CVE-2025-20165 7.5 HIGH Cisco BroadWorks SIP Denial of Service Vulnerability
CVE-2025-20128 5.3 MEDIUM ClamAV OLE2 File Format Decryption Denial of Service Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Meeting Management
Same vendor: Cisco
Same weakness: CWE-274

V. Comments for CVE-2025-20156

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