CVE-2026-23666— .NET Framework Denial of Service Vulnerability
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I. Basic Information for CVE-2026-23666
Vulnerability Information
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Vulnerability Title
.NET Framework Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对异常条件的处理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft .NET Framework 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft .NET Framework是美国微软（Microsoft）公司的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。该平台包括C#和Visual Basic编程语言、公共语言运行库和广泛的类库。 Microsoft .NET Framework存在安全漏洞。攻击者利用该漏洞导致系统拒绝服务。以下产品和版本受到影响：Microsoft .NET
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 | Microsoft .NET Framework 3.5 | 3.5.0 ~ 2.0.50727.8982 & 3.0.30729.8976 | - | |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | 4.7.0 ~ 2.0.50727.9068 & 3.0.30729.9065 & 4.7.4141.0 | - | |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | 4.8.0 ~ 2.0.50727.9068 & 3.0.30729.9065 & 4.8.4801.0 | - | |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 | 4.8.1 ~ 2.0.50727.9181 & 3.0.30729.9165 & 4.8.9332.0 | - | |
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 | 4.7.0 ~ 4.8.4801.0 | - | |
| Microsoft | Microsoft .NET Framework 4.8 | 4.8.0 ~ 4.8.4801.0 | - |
II. Public POCs for CVE-2026-23666
| # | POC Description | Source Link | Shenlong Link |
|---|
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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-2026-33115 | 8.4 HIGH | Microsoft Word Remote Code Execution Vulnerability |
| CVE-2026-32221 | 8.4 HIGH | Windows Graphics Component Remote Code Execution Vulnerability |
| CVE-2026-32091 | 8.4 HIGH | Microsoft Brokering File System Elevation of Privilege 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-2026-33827 | 8.1 HIGH | Windows TCP/IP Remote Code Execution Vulnerability |
| CVE-2026-33826 | 8.0 HIGH | Windows Active Directory Remote Code Execution Vulnerability |
| CVE-2026-27912 | 8.0 HIGH | Windows Kerberos Elevation of Privilege Vulnerability |
| CVE-2026-33098 | 7.8 HIGH | Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability |
| CVE-2026-32222 | 7.8 HIGH | Windows Win32k Elevation of Privilege Vulnerability |
Showing top 20 of 163 CVEs. View all on vendor page → →
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