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CVE-2025-20309— Cisco Unified Communications Manager Static SSH Credentials Vulnerability

Quick assessment

Affected
Cisco Cisco Unified Communications Manager
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 Unified Communications Manager是美国思科（Cisco）公司的一款统一通信系统中的呼叫处理组件。该组件提供了一种可扩展、可分布和高可用的企业IP电话呼叫处理解决方案。 Cisco Unified Communications Manager存在安全漏洞，该漏洞源于root账户静态凭据无法更改，可能导致未授权访问和任意命令执行。

CVSS 10.0 · Critical EPSS 1.14% · P65
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I. Basic Information for CVE-2025-20309

Vulnerability Information
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Vulnerability Title
Cisco Unified Communications Manager Static SSH Credentials Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to log in to an affected device using the root account, which has default, static credentials that cannot be changed or deleted. This vulnerability is due to the presence of static user credentials for the root account that are reserved for use during development. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to log in to the affected system and execute arbitrary commands as the root user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的凭证
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Unified Communications Manager 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Unified Communications Manager是美国思科（Cisco）公司的一款统一通信系统中的呼叫处理组件。该组件提供了一种可扩展、可分布和高可用的企业IP电话呼叫处理解决方案。 Cisco Unified Communications Manager存在安全漏洞，该漏洞源于root账户静态凭据无法更改，可能导致未授权访问和任意命令执行。
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 Unified Communications Manager 15.0.1.13010-1 -

II. Public POCs for CVE-2025-20309

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III. Intelligence Information for CVE-2025-20309

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Same Patch Batch · Cisco · 2025-07-02 · 4 CVEs total

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CVE-2025-20307 4.8 MEDIUM Cisco BroadWorks Application Delivery Platform Cross-Site Scripting Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Unified Communications Manager
Same vendor: Cisco
Same weakness: CWE-798

V. Comments for CVE-2025-20309

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