CVE-2026-32203— .NET and Visual Studio Denial of Service 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 Visual Studio和Microsoft .NET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，它包括了整个软件生命周期中所需要的大部分工具。Microsoft .NET是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 Visual Studio和Microsoft .NET存在安全漏洞。攻击者利用该漏洞导致系统拒绝服务。以下产品和
Possible ATT&CK Techniques 2 AI
T1203 · Exploitation for Client Execution T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 6
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | .NET 10.0 | 10.0.0< 10.0.6 |
affected |
| Microsoft | .NET 8.0 | 8.0.0< 8.0.26 |
affected |
| Microsoft | .NET 9.0 | 9.0.0< 9.0.15 |
affected |
| Microsoft | Microsoft Visual Studio 2022 version 17.12 | 17.12.0< 17.12.19 |
affected |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0< 17.14.30 |
affected |
| Microsoft | Microsoft Visual Studio 2026 version 18.4 | 18.4.0< 18.4.4 |
affected |
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I. Basic Information for CVE-2026-32203
Vulnerability Information
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Vulnerability Title
.NET and Visual Studio Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Stack-based buffer overflow in .NET and Visual Studio 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
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Visual Studio和Microsoft .NET 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Visual Studio和Microsoft .NET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，它包括了整个软件生命周期中所需要的大部分工具。Microsoft .NET是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 Visual Studio和Microsoft .NET存在安全漏洞。攻击者利用该漏洞导致系统拒绝服务。以下产品和
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 ~ 10.0.6 | - |
|
| Microsoft | .NET 8.0 | 8.0.0 ~ 8.0.26 | - |
|
| Microsoft | .NET 9.0 | 9.0.0 ~ 9.0.15 | - |
|
| Microsoft | Microsoft Visual Studio 2022 version 17.12 | 17.12.0 ~ 17.12.19 | - |
|
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0 ~ 17.14.30 | - |
|
| Microsoft | Microsoft Visual Studio 2026 version 18.4 | 18.4.0 ~ 18.4.4 | - |
|
II. Public POCs for CVE-2026-32203
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · Microsoft · 2026-04-14 · 163 CVEs total
| CVE-2026-33824 | 9.8 CRITICAL | Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability |
| CVE-2026-26149 | 9.0 CRITICAL | Microsoft Power Apps Desktop Client Spoofing Vulnerability |
| CVE-2026-26178 | 8.8 HIGH | Windows Advanced Rasterization Platform Elevation of Privilege Vulnerability |
| CVE-2026-33120 | 8.8 HIGH | Microsoft SQL Server Remote Code Execution Vulnerability |
| CVE-2026-32157 | 8.8 HIGH | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2026-32171 | 8.8 HIGH | Azure Logic Apps Elevation of Privilege Vulnerability |
| CVE-2026-32225 | 8.8 HIGH | Windows Shell Security Feature Bypass Vulnerability |
| CVE-2026-26167 | 8.8 HIGH | Windows Push Notifications Elevation of Privilege Vulnerability |
| CVE-2026-27928 | 8.7 HIGH | Windows Hello Security Feature Bypass Vulnerability |
| CVE-2026-32162 | 8.4 HIGH | Windows COM Elevation of Privilege Vulnerability |
| CVE-2026-32190 | 8.4 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2026-33114 | 8.4 HIGH | Microsoft Word Remote Code Execution Vulnerability |
| CVE-2026-32091 | 8.4 HIGH | Microsoft Brokering File System Elevation of Privilege Vulnerability |
| CVE-2026-32221 | 8.4 HIGH | Windows Graphics Component Remote Code Execution Vulnerability |
| CVE-2026-33115 | 8.4 HIGH | Microsoft Word Remote Code Execution Vulnerability |
| CVE-2026-33827 | 8.1 HIGH | Windows TCP/IP Remote Code Execution Vulnerability |
| CVE-2026-27912 | 8.0 HIGH | Windows Kerberos Elevation of Privilege Vulnerability |
| CVE-2026-33826 | 8.0 HIGH | Windows Active Directory Remote Code Execution Vulnerability |
| CVE-2026-33098 | 7.8 HIGH | Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability |
| CVE-2026-33825 | 7.8 HIGH | Microsoft Defender Elevation of Privilege Vulnerability |
Showing top 20 of 163 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: .NET 10.0
Same vendor: Microsoft
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Same weakness: CWE-121
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V. Comments for CVE-2026-32203
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