Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%

Buy Us a Coffee

CVE-2025-21239— Windows Telephony Service 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 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-based Syste

CVSS 8.8 · High EPSS 1.49% · P72 Updated Jun 13, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 17

Vendor	Product	Version Range	Status
Microsoft	Windows 10 Version 1507	`10.0.10240.0< 10.0.10240.20890`	affected
Microsoft	Windows 10 Version 1607	`10.0.14393.0< 10.0.14393.7699`	affected
Microsoft	Windows 10 Version 1809	`10.0.17763.0< 10.0.17763.6775`	affected
Microsoft	Windows 10 Version 21H2	`10.0.19044.0< 10.0.19044.5371`	affected
Microsoft	Windows 10 Version 22H2	`10.0.19045.0< 10.0.19045.5371`	affected
Microsoft	Windows 11 version 22H2	`10.0.22621.0< 10.0.22621.4751`	affected
Microsoft	Windows 11 version 22H3	`10.0.22631.0< 10.0.22631.4751`	affected
Microsoft	Windows 11 Version 23H2	`10.0.22631.0< 10.0.22631.4751`	affected
Microsoft	Windows 11 Version 24H2	`10.0.26100.0< 10.0.26100.2894`	affected
Microsoft	Windows Server 2016	`10.0.14393.0< 10.0.14393.7699`	affected
Microsoft	Windows Server 2016 (Server Core installation)	`10.0.14393.0< 10.0.14393.7699`	affected
Microsoft	Windows Server 2019	`10.0.17763.0< 10.0.17763.6775`	affected
Microsoft	Windows Server 2019 (Server Core installation)	`10.0.17763.0< 10.0.17763.6775`	affected
Microsoft	Windows Server 2022	`10.0.20348.0< 10.0.20348.3091`	affected
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	`10.0.25398.0< 10.0.25398.1369`	affected
Microsoft	Windows Server 2025	`10.0.26100.0< 10.0.26100.2894`	affected
Microsoft	Windows Server 2025 (Server Core installation)	`10.0.26100.0< 10.0.26100.2894`	affected

Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-21239

Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

Windows Telephony Service Remote Code Execution Vulnerability

Source: CVE Program / CVE List V5

Vulnerability Description

Windows Telephony Service 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

堆缓冲区溢出

Source: CVE Program / CVE List V5

Vulnerability Title

Microsoft Windows Telephony Server 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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
Microsoft	Windows 10 Version 1507	10.0.10240.0 ~ 10.0.10240.20890	-
Microsoft	Windows 10 Version 1607	10.0.14393.0 ~ 10.0.14393.7699	-
Microsoft	Windows 10 Version 1809	10.0.17763.0 ~ 10.0.17763.6775	-
Microsoft	Windows 10 Version 21H2	10.0.19044.0 ~ 10.0.19044.5371	-
Microsoft	Windows 10 Version 22H2	10.0.19045.0 ~ 10.0.19045.5371	-
Microsoft	Windows 11 version 22H2	10.0.22621.0 ~ 10.0.22621.4751	-
Microsoft	Windows 11 version 22H3	10.0.22631.0 ~ 10.0.22631.4751	-
Microsoft	Windows 11 Version 23H2	10.0.22631.0 ~ 10.0.22631.4751	-
Microsoft	Windows 11 Version 24H2	10.0.26100.0 ~ 10.0.26100.2894	-
Microsoft	Windows Server 2016	10.0.14393.0 ~ 10.0.14393.7699	-
Microsoft	Windows Server 2016 (Server Core installation)	10.0.14393.0 ~ 10.0.14393.7699	-
Microsoft	Windows Server 2019	10.0.17763.0 ~ 10.0.17763.6775	-
Microsoft	Windows Server 2019 (Server Core installation)	10.0.17763.0 ~ 10.0.17763.6775	-
Microsoft	Windows Server 2022	10.0.20348.0 ~ 10.0.20348.3091	-
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	10.0.25398.0 ~ 10.0.25398.1369	-
Microsoft	Windows Server 2025	10.0.26100.0 ~ 10.0.26100.2894	-
Microsoft	Windows Server 2025 (Server Core installation)	10.0.26100.0 ~ 10.0.26100.2894	-

II. Public POCs for CVE-2025-21239

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2025-21239

请登录查看更多情报信息。

Vendor Advisories for CVE-2025-21239 (1)

CVE-2025-21239 - Security Update Guide - Microsoft - Windows Telephony Service Remote Code Execution Vulnerability vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2025-21239

Same Patch Batch · Microsoft · 2025-01-14 · 157 CVEs total

CVE-2025-21298	9.8 CRITICAL	Windows OLE Remote Code Execution Vulnerability
CVE-2025-21311	9.8 CRITICAL	Windows NTLM V1 Elevation of Privilege Vulnerability
CVE-2025-21307	9.8 CRITICAL	Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
CVE-2025-21305	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21282	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21293	8.8 HIGH	Active Directory Domain Services Elevation of Privilege Vulnerability
CVE-2025-21291	8.8 HIGH	Windows Direct Show Remote Code Execution Vulnerability
CVE-2025-21302	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21303	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21306	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21176	8.8 HIGH	.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
CVE-2025-21178	8.8 HIGH	Visual Studio Remote Code Execution Vulnerability
CVE-2025-21273	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21286	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21223	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21240	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21238	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21417	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21245	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21409	8.8 HIGH	Windows Telephony Service Remote Code Execution Vulnerability

Showing top 20 of 157 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-2025-21239

No comments yet

Goal Reached Thanks to every supporter — we hit 100%!

CVE-2025-21239— Windows Telephony Service Remote Code Execution Vulnerability

Quick assessment

Possible ATT&CK Techniques 1 AI

Affected Version Matrix 17

I. Basic Information for CVE-2025-21239

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2025-21239

III. Intelligence Information for CVE-2025-21239

Vendor Advisories for CVE-2025-21239 (1)

Same Patch Batch · Microsoft · 2025-01-14 · 157 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2025-21239

Leave a comment