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CVE-2026-47304— .NET Security Feature Bypass Vulnerability

Quick assessment

Affected
Microsoft .NET 10.0
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 .NET是美国Microsoft公司的一个致力于敏捷软件开发、快速应用开发、平台无关性和网络透明化的软件框架。 Microsoft .NET存在安全漏洞，该漏洞源于加密签名验证不当，可能导致未经授权的攻击者通过网络绕过安全功能。以下版本受到影响：Microsoft Visual Studio 2022 17.12.22之前版本、Microsoft Visual Studio 2022 17.14.36之前版本和Microsoft Visual Studio 2026 18.7.4之前版

CVSS 8.1 · High EPSS 0.29% · P19

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 16

VendorProduct Version RangeStatus
Microsoft .NET 10.0 10.0.0< 10.0.10 affected
Microsoft .NET 8.0 8.0.0< 8.0.29 affected
Microsoft .NET 9.0 9.0.0< 9.0.18 affected
Microsoft Microsoft .NET Framework 3.5 3.5.0< 2.0.50727.8983 & 3.0.30729.8978 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 4.7.0< 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.8 4.8.0< 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 4.8.1< 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0 affected
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.0< 4.7.4143.0 affected
Microsoft Microsoft .NET Framework 4.8 4.8.0< 4.8.4803.0 affected
Microsoft Microsoft .NET Framework 4.8.1 4.8.0.0< 4.8.9340.0 affected
Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) - affected
Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) - affected
Microsoft Microsoft Visual Studio 2022 version 17.12 17.12.0< 17.12.22 affected
Microsoft Microsoft Visual Studio 2022 version 17.14 17.14.0< 17.14.36 affected
Microsoft Microsoft Visual Studio 2026 version 18.5 - affected
Microsoft Microsoft Visual Studio 2026 version 18.7 18.0< 18.7.4 affected
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I. Basic Information for CVE-2026-47304

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
.NET Security Feature Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft .NET 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft .NET是美国Microsoft公司的一个致力于敏捷软件开发、快速应用开发、平台无关性和网络透明化的软件框架。 Microsoft .NET存在安全漏洞，该漏洞源于加密签名验证不当，可能导致未经授权的攻击者通过网络绕过安全功能。以下版本受到影响：Microsoft Visual Studio 2022 17.12.22之前版本、Microsoft Visual Studio 2022 17.14.36之前版本和Microsoft Visual Studio 2026 18.7.4之前版
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 10.0 10.0.0 ~ 10.0.10 -
Microsoft .NET 8.0 8.0.0 ~ 8.0.29 -
Microsoft .NET 9.0 9.0.0 ~ 9.0.18 -
Microsoft Microsoft .NET Framework 3.5 3.5.0 ~ 2.0.50727.8983 & 3.0.30729.8978 -
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 4.7.0 ~ 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0 -
Microsoft Microsoft .NET Framework 3.5 AND 4.8 4.8.0 ~ 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0 -
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 4.8.1 ~ 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0 -
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.0 ~ 4.7.4143.0 -
Microsoft Microsoft .NET Framework 4.8 4.8.0 ~ 4.8.4803.0 -
Microsoft Microsoft .NET Framework 4.8.1 4.8.0.0 ~ 4.8.9340.0 -
Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) - -
Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) - -
Microsoft Microsoft Visual Studio 2022 version 17.12 17.12.0 ~ 17.12.22 -
Microsoft Microsoft Visual Studio 2022 version 17.14 17.14.0 ~ 17.14.36 -
Microsoft Microsoft Visual Studio 2026 version 18.5 - -
Microsoft Microsoft Visual Studio 2026 version 18.7 18.0 ~ 18.7.4 -

II. Public POCs for CVE-2026-47304

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III. Intelligence Information for CVE-2026-47304

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Vendor Advisories for CVE-2026-47304 (1)

Same Patch Batch · Microsoft · 2026-07-14 · 570 CVEs total

CVE-2026-57092 9.9 CRITICAL Microsoft Windows VMSwitch Elevation of Privilege Vulnerability
CVE-2026-54118 9.8 CRITICAL Microsoft SQL Server Remote Code Execution Vulnerability
CVE-2026-54117 9.8 CRITICAL Microsoft SQL Server Remote Code Execution Vulnerability
CVE-2026-42990 9.8 CRITICAL SQL Server ODBC driver Elevation of Privilege Vulnerability
CVE-2026-50522 9.8 CRITICAL Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2026-58644 9.8 CRITICAL Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2026-50518 9.8 CRITICAL Windows DHCP Server Remote Code Execution Vulnerability
CVE-2026-56188 9.8 CRITICAL Windows Server Network driver Remote Code Execution Vulnerability
CVE-2026-55010 9.8 CRITICAL Minecraft Bedrock Dedicated Server Remote Code Execution Vulnerability
CVE-2026-56190 9.8 CRITICAL Remote Desktop Protocol Remote Code Execution Vulnerability
CVE-2026-54990 9.8 CRITICAL Remote Desktop Client Remote Code Execution Vulnerability
CVE-2026-50447 9.8 CRITICAL Windows Message Queuing Service (MSMQ) Remote Code Execution Vulnerability
CVE-2026-56159 9.8 CRITICAL DHCP Server Service Remote Code Execution Vulnerability
CVE-2026-55944 9.8 CRITICAL Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Co
CVE-2026-49172 9.8 CRITICAL Windows FTP Service Remote Code Execution Vulnerability
CVE-2026-48561 9.6 CRITICAL Microsoft Edge Copilot Remote Code Execution Vulnerability
CVE-2026-55008 9.6 CRITICAL Microsoft Exchange Server Spoofing Vulnerability
CVE-2026-50380 9.6 CRITICAL Windows GDI+ Remote Code Execution Vulnerability
CVE-2026-49798 9.3 CRITICAL Windows Kernel Elevation of Privilege Vulnerability
CVE-2026-55040 9.1 CRITICAL Microsoft SharePoint Server Security Feature Bypass Vulnerability

Showing top 20 of 570 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: .NET 10.0
Same vendor: Microsoft
Same weakness: CWE-347

V. Comments for CVE-2026-47304

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