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CVE-2025-21176— .NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability

Quick assessment

Affected
Microsoft .NET 8.0
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 Visual Studio等都是美国微软（Microsoft）公司的产品。Microsoft Visual Studio是一款开发工具套件系列产品，也是一个基本完整的开发工具集，Microsoft .NET Framework是一种全面且一致的编程模型，也是一个用于构建Windows、Windows Store、Windows Phone、Windows Server和Microsoft Azure的应用程序的开发平台。Microsoft .NET是一个致力于敏捷软件开发、快速应用开发

CVSS 8.8 · High EPSS 2.35% · P83

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 17

VendorProduct Version RangeStatus
Microsoft .NET 8.0 8.0.0< 8.0.12 affected
Microsoft .NET 9.0 9.0.0< 9.0.1 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 3.0.0.0< 10.0.14393.7699 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 4.7.0< 4.7.04126.01 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.8 4.8.0< 4.8.04775.01 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 4.8.1< 4.8.1.09294.01 affected
Microsoft Microsoft .NET Framework 4.6.2 4.7.0< 4.7.04126.01 affected
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.0< 4.7.04126.01 affected
Microsoft Microsoft .NET Framework 4.6/4.6.2 10.0.0.0< 10.0.10240.20890 affected
Microsoft Microsoft .NET Framework 4.8 4.8.0< 4.8.04775.01 affected
Microsoft Microsoft Visual Studio 2015 Update 3 14.0.0< 14.0.24252.2 affected
Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) 15.9.0< 15.9.69 affected
Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) 16.11.0< 16.11.43 affected
Microsoft Microsoft Visual Studio 2022 version 17.10 17.10.0< 17.10.10 affected
Microsoft Microsoft Visual Studio 2022 version 17.12 17.12.0< 17.12.4 affected
Microsoft Microsoft Visual Studio 2022 version 17.6 17.6.0< 17.6.22 affected
Microsoft Microsoft Visual Studio 2022 version 17.8 17.8.0< 17.8.17 affected
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I. Basic Information for CVE-2025-21176

Vulnerability Information
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Vulnerability Title
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
.NET, .NET Framework, and Visual Studio 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
缓冲区上溢读取
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft .NET、Microsoft .NET Framework和Microsoft Visual Studio 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Visual Studio等都是美国微软（Microsoft）公司的产品。Microsoft Visual Studio是一款开发工具套件系列产品，也是一个基本完整的开发工具集，Microsoft .NET Framework是一种全面且一致的编程模型，也是一个用于构建Windows、Windows Store、Windows Phone、Windows Server和Microsoft Azure的应用程序的开发平台。Microsoft .NET是一个致力于敏捷软件开发、快速应用开发
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 .NET 8.0 8.0.0 ~ 8.0.12 -
Microsoft .NET 9.0 9.0.0 ~ 9.0.1 -
Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 3.0.0.0 ~ 10.0.14393.7699 -
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 4.7.0 ~ 4.7.04126.01 -
Microsoft Microsoft .NET Framework 3.5 AND 4.8 4.8.0 ~ 4.8.04775.01 -
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 4.8.1 ~ 4.8.1.09294.01 -
Microsoft Microsoft .NET Framework 4.6.2 4.7.0 ~ 4.7.04126.01 -
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.0 ~ 4.7.04126.01 -
Microsoft Microsoft .NET Framework 4.6/4.6.2 10.0.0.0 ~ 10.0.10240.20890 -
Microsoft Microsoft .NET Framework 4.8 4.8.0 ~ 4.8.04775.01 -
Microsoft Microsoft Visual Studio 2015 Update 3 14.0.0 ~ 14.0.24252.2 -
Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) 15.9.0 ~ 15.9.69 -
Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) 16.11.0 ~ 16.11.43 -
Microsoft Microsoft Visual Studio 2022 version 17.10 17.10.0 ~ 17.10.10 -
Microsoft Microsoft Visual Studio 2022 version 17.12 17.12.0 ~ 17.12.4 -
Microsoft Microsoft Visual Studio 2022 version 17.6 17.6.0 ~ 17.6.22 -
Microsoft Microsoft Visual Studio 2022 version 17.8 17.8.0 ~ 17.8.17 -

II. Public POCs for CVE-2025-21176

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III. Intelligence Information for CVE-2025-21176

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Vendor Advisories for CVE-2025-21176 (1)

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-2025-21266 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-2025-21178 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 &rarr; →

IV. Related Vulnerabilities

Same product: .NET 8.0
Same vendor: Microsoft
Same weakness: CWE-126

V. Comments for CVE-2025-21176

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