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CVE-2025-21201— Windows Telephony Server Remote Code Execution Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1507
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.

Microsoft Windows Telephony Server是美国微软（Microsoft）公司的一个组件，它支持电话应用程序编程接口（TAPI），允许计算机程序与共享的电话服务进行通信。 Microsoft Windows Telephony Server存在资源管理错误漏洞。攻击者利用该漏洞可以远程执行代码。以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-based S

CVSS 8.8 · High EPSS 1.83% · P78

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-21201

Vulnerability Information
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Vulnerability Title
Windows Telephony Server Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows Telephony Server Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
双重释放
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Telephony Server 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Telephony Server是美国微软（Microsoft）公司的一个组件，它支持电话应用程序编程接口（TAPI），允许计算机程序与共享的电话服务进行通信。 Microsoft Windows Telephony Server存在资源管理错误漏洞。攻击者利用该漏洞可以远程执行代码。以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-based S
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows 10 Version 1507 10.0.10240.0 ~ 10.0.10240.20915 -
Microsoft Windows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.7785 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.6893 -
Microsoft Windows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.5487 -
Microsoft Windows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.5487 -
Microsoft Windows 11 version 22H2 10.0.22621.0 ~ 10.0.22621.4890 -
Microsoft Windows 11 version 22H3 10.0.22631.0 ~ 10.0.22631.4890 -
Microsoft Windows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.4890 -
Microsoft Windows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.3194 -
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 ~ 6.1.7601.27566 -
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 ~ 6.1.7601.27566 -
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 ~ 6.0.6003.23117 -
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 ~ 6.0.6003.23117 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.25317 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.25317 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.22417 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.22417 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.7785 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.7785 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.6893 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.6893 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.3207 -
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.1425 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.3194 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.3194 -

II. Public POCs for CVE-2025-21201

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III. Intelligence Information for CVE-2025-21201

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Vendor Advisories for CVE-2025-21201 (1)

Same Patch Batch · Microsoft · 2025-02-11 · 55 CVEs total

CVE-2025-21198 9.0 CRITICAL Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability
CVE-2025-21208 8.8 HIGH Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2025-21200 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21406 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21368 8.8 HIGH Microsoft Digest Authentication Remote Code Execution Vulnerability
CVE-2025-21369 8.8 HIGH Microsoft Digest Authentication Remote Code Execution Vulnerability
CVE-2025-21371 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21410 8.8 HIGH Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2025-21407 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21190 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21376 8.1 HIGH Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2025-21400 8.0 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2025-21387 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2025-21390 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2025-21358 7.8 HIGH Windows Core Messaging Elevation of Privileges Vulnerability
CVE-2025-21367 7.8 HIGH Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
CVE-2025-21359 7.8 HIGH Windows Kernel Security Feature Bypass Vulnerability
CVE-2025-21397 7.8 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2025-21386 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2025-21381 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability

Showing top 20 of 55 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1507
Same vendor: Microsoft
Same weakness: CWE-415

V. Comments for CVE-2025-21201

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