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CVE-2025-21205— Windows Telephony Service Remote Code Execution Vulnerability

CVSS 8.8 · High EPSS 1.10% · P78
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I. Basic Information for CVE-2025-21205

Vulnerability Information
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Vulnerability Title
Windows Telephony Service Remote Code Execution Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Windows Telephony Server 安全漏洞
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存在安全漏洞。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 11 Version 23H2 for ARM64-based Systems,Windows 11 Version 23H2 for x64-based
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

VendorProductAffected VersionsCPESubscribe
MicrosoftWindows 10 Version 1507 10.0.10240.0 ~ 10.0.10240.20978 -
MicrosoftWindows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.7969 -
MicrosoftWindows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.7136 -
MicrosoftWindows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.5737 -
MicrosoftWindows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.5737 -
MicrosoftWindows 11 version 22H2 10.0.22621.0 ~ 10.0.22621.5189 -
MicrosoftWindows 11 version 22H3 10.0.22631.0 ~ 10.0.22631.5189 -
MicrosoftWindows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.5189 -
MicrosoftWindows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.3775 -
MicrosoftWindows Server 2008 R2 Service Pack 1 6.1.7601.0 ~ 6.1.7601.27670 -
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 ~ 6.1.7601.27670 -
MicrosoftWindows Server 2008 Service Pack 2 6.0.6003.0 ~ 6.0.6003.23220 -
MicrosoftWindows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 ~ 6.0.6003.23220 -
MicrosoftWindows Server 2012 6.2.9200.0 ~ 6.2.9200.25423 -
MicrosoftWindows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.25423 -
MicrosoftWindows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.22523 -
MicrosoftWindows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.22523 -
MicrosoftWindows Server 2016 10.0.14393.0 ~ 10.0.14393.7969 -
MicrosoftWindows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.7969 -
MicrosoftWindows Server 2019 10.0.17763.0 ~ 10.0.17763.7136 -
MicrosoftWindows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.7136 -
MicrosoftWindows Server 2022 10.0.20348.0 ~ 10.0.20348.3453 -
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.1551 -
MicrosoftWindows Server 2025 10.0.26100.0 ~ 10.0.26100.3775 -
MicrosoftWindows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.3775 -

II. Public POCs for CVE-2025-21205

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III. Intelligence Information for CVE-2025-21205

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Same Patch Batch · Microsoft · 2025-04-08 · 119 CVEs total

CVE-2025-212218.8 HIGHWindows Telephony Service Remote Code Execution Vulnerability
CVE-2025-297948.8 HIGHMicrosoft SharePoint Remote Code Execution Vulnerability
CVE-2025-266698.8 HIGHWindows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability
CVE-2025-212228.8 HIGHWindows Telephony Service Remote Code Execution Vulnerability
CVE-2025-274778.8 HIGHWindows Telephony Service Remote Code Execution Vulnerability
CVE-2025-277408.8 HIGHActive Directory Certificate Services Elevation of Privilege Vulnerability
CVE-2025-266478.8 HIGHWindows Kerberos Elevation of Privilege Vulnerability
CVE-2025-274818.8 HIGHWindows Telephony Service Remote Code Execution Vulnerability
CVE-2025-277378.6 HIGHWindows Security Zone Mapping Security Feature Bypass Vulnerability
CVE-2025-266788.4 HIGHWindows Defender Application Control Security Feature Bypass Vulnerability
CVE-2025-266638.1 HIGHWindows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2025-274828.1 HIGHWindows Remote Desktop Services Remote Code Execution Vulnerability
CVE-2025-274808.1 HIGHWindows Remote Desktop Services Remote Code Execution Vulnerability
CVE-2025-266708.1 HIGHLightweight Directory Access Protocol (LDAP) Client Remote Code Execution Vulnerability
CVE-2025-266718.1 HIGHWindows Remote Desktop Services Remote Code Execution Vulnerability
CVE-2025-274878.0 HIGHRemote Desktop Client Remote Code Execution Vulnerability
CVE-2025-240737.8 HIGHMicrosoft DWM Core Library Elevation of Privilege Vulnerability
CVE-2025-240627.8 HIGHMicrosoft DWM Core Library Elevation of Privilege Vulnerability
CVE-2025-266747.8 HIGHWindows Media Remote Code Execution Vulnerability
CVE-2025-240747.8 HIGHMicrosoft DWM Core Library Elevation of Privilege Vulnerability

Showing top 20 of 119 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1507
Same vendor: Microsoft
Same weakness: CWE-122

V. Comments for CVE-2025-21205

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