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CVE-2026-47302— .NET Denial of Service Vulnerability

CVSS 7.5 · High EPSS 1.03% · P60

Possible ATT&CK Techniques 1AI

T1499.001 · OS Exhaustion Flood

Affected Version Matrix 12

VendorProductVersion RangeStatus
Microsoft.NET 10.010.0.0< 10.0.10affected
Microsoft.NET 8.08.0.0< 8.0.29affected
Microsoft.NET 9.09.0.0< 9.0.18affected
MicrosoftMicrosoft .NET Framework 3.53.5.0< 2.0.50727.8983 & 3.0.30729.8978affected
MicrosoftMicrosoft .NET Framework 3.5 AND 4.7.24.7.0< 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0affected
MicrosoftMicrosoft .NET Framework 3.5 AND 4.84.8.0< 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0affected
MicrosoftMicrosoft .NET Framework 3.5 AND 4.8.14.8.1< 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0affected
MicrosoftMicrosoft .NET Framework 4.6.2/4.7/4.7.1/4.7.24.7.0< 4.7.4143.0affected
MicrosoftMicrosoft .NET Framework 4.84.8.0< 4.8.4803.0affected
MicrosoftMicrosoft Visual Studio 2022 version 17.1217.12.0< 17.12.22affected
MicrosoftMicrosoft Visual Studio 2022 version 17.1417.14.0< 17.14.36affected
MicrosoftMicrosoft Visual Studio 2026 version 18.718.0< 18.7.4affected
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I. Basic Information for CVE-2026-47302

Vulnerability Information
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Vulnerability Title
.NET Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft .NET 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft .net是美国Microsoft公司开源的一个跨平台开发框架。 Microsoft .NET存在资源管理错误漏洞，该漏洞源于资源无限制分配或节流问题，可能导致未经授权的攻击者通过网络拒绝服务。以下版本受到影响：.NET 10.0版本、.NET 8.0版本、.NET 9.0版本、Microsoft .NET Framework 3.5版本、Microsoft .NET Framework 3.5 AND 4.7.2版本、Microsoft .NET Framework 3.5 AND 4
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
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 -
MicrosoftMicrosoft .NET Framework 3.5 3.5.0 ~ 2.0.50727.8983 & 3.0.30729.8978 -
MicrosoftMicrosoft .NET Framework 3.5 AND 4.7.2 4.7.0 ~ 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0 -
MicrosoftMicrosoft .NET Framework 3.5 AND 4.8 4.8.0 ~ 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0 -
MicrosoftMicrosoft .NET Framework 3.5 AND 4.8.1 4.8.1 ~ 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0 -
MicrosoftMicrosoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.0 ~ 4.7.4143.0 -
MicrosoftMicrosoft .NET Framework 4.8 4.8.0 ~ 4.8.4803.0 -
MicrosoftMicrosoft Visual Studio 2022 version 17.12 17.12.0 ~ 17.12.22 -
MicrosoftMicrosoft Visual Studio 2022 version 17.14 17.14.0 ~ 17.14.36 -
MicrosoftMicrosoft Visual Studio 2026 version 18.7 18.0 ~ 18.7.4 -

II. Public POCs for CVE-2026-47302

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III. Intelligence Information for CVE-2026-47302

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Vendor Advisories for CVE-2026-47302 (1)

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

CVE-2026-570929.9 CRITICALMicrosoft Windows VMSwitch Elevation of Privilege Vulnerability
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CVE-2026-505189.8 CRITICALWindows DHCP Server Remote Code Execution Vulnerability
CVE-2026-559449.8 CRITICALMicrosoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Co
CVE-2026-561909.8 CRITICALRemote Desktop Protocol Remote Code Execution Vulnerability
CVE-2026-429909.8 CRITICALSQL Server ODBC driver Elevation of Privilege Vulnerability
CVE-2026-549909.8 CRITICALRemote Desktop Client Remote Code Execution Vulnerability
CVE-2026-561889.8 CRITICALWindows Server Network driver Remote Code Execution Vulnerability
CVE-2026-505229.8 CRITICALMicrosoft SharePoint Remote Code Execution Vulnerability
CVE-2026-586449.8 CRITICALMicrosoft SharePoint Remote Code Execution Vulnerability
CVE-2026-491729.8 CRITICALWindows FTP Service Remote Code Execution Vulnerability
CVE-2026-504479.8 CRITICALWindows Message Queuing Service (MSMQ) Remote Code Execution Vulnerability
CVE-2026-550109.8 CRITICALMinecraft Bedrock Dedicated Server Remote Code Execution Vulnerability
CVE-2026-485619.6 CRITICALMicrosoft Edge Copilot Remote Code Execution Vulnerability
CVE-2026-503809.6 CRITICALWindows GDI+ Remote Code Execution Vulnerability
CVE-2026-550089.6 CRITICALMicrosoft Exchange Server Spoofing Vulnerability
CVE-2026-497989.3 CRITICALWindows Kernel Elevation of Privilege Vulnerability
CVE-2026-550409.1 CRITICALMicrosoft SharePoint Server Security Feature Bypass Vulnerability
CVE-2026-570878.8 HIGHMicrosoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2026-485648.8 HIGHDHCP Server Service Remote Code Execution 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-770

V. Comments for CVE-2026-47302

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