CVE-2022-21911— .NET Framework Denial of Service Vulnerability
Quick assessment
Affected
Microsoft Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
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 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存在输入验证错误漏洞，攻击者利用该漏洞可导致拒绝服务攻击。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2022-21911
Vulnerability Information
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Vulnerability Title
.NET Framework Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
.NET Framework Denial of Service Vulnerability
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
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft .NET Framework 输入验证错误漏洞
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存在输入验证错误漏洞，攻击者利用该漏洞可导致拒绝服务攻击。
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 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 | 4.0.0.0 ~ 4.7.3905.0 | - |
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | 4.8.0 ~ 4.8.4465.0 | - |
|
| Microsoft | Microsoft .NET Framework 4.8 | 4.8.0 ~ 4.8.4465.0 | - |
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | 4.7.0 ~ 4.7.3905.0 | - |
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 | 3.0.0.0 ~ 10.0.14393.4886 | - |
|
| Microsoft | Microsoft .NET Framework 2.0 Service Pack 2 | 2.0.0 ~ 2.0.50727.8955 | - |
|
| Microsoft | Microsoft .NET Framework 4.6 | 4.0.0.0 ~ 4.7.3905.0 | - |
|
| Microsoft | Microsoft .NET Framework 3.5 | 3.5.0 ~ 2.0.50727.8955 | - |
|
| Microsoft | Microsoft .NET Framework 3.5.1 | 3.5.0 ~ 2.0.50727.8955 | - |
|
| Microsoft | Microsoft .NET Framework 4.5.2 | 4.0.0.0 ~ 4.0.30319.36720 | - |
|
II. Public POCs for CVE-2022-21911
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2022-21911 (1)
Same Patch Batch · Microsoft · 2022-01-11 · 100 CVEs total
| CVE-2022-21907 | 9.8 CRITICAL | HTTP Protocol Stack Remote Code Execution Vulnerability |
| CVE-2022-21849 | 9.8 CRITICAL | Windows Internet Key Exchange (IKE) Protocol Extensions Remote Code Execution Vulnerabilit |
| CVE-2022-21846 | 9.0 CRITICAL | Microsoft Exchange Server Remote Code Execution Vulnerability |
| CVE-2022-21855 | 9.0 CRITICAL | Microsoft Exchange Server Remote Code Execution Vulnerability |
| CVE-2022-21969 | 9.0 CRITICAL | Microsoft Exchange Server Remote Code Execution Vulnerability |
| CVE-2022-21901 | 9.0 CRITICAL | Windows Hyper-V Elevation of Privilege Vulnerability |
| CVE-2022-21920 | 8.8 HIGH | Windows Kerberos Elevation of Privilege Vulnerability |
| CVE-2022-21922 | 8.8 HIGH | Remote Procedure Call Runtime Remote Code Execution Vulnerability |
| CVE-2022-21851 | 8.8 HIGH | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2022-21857 | 8.8 HIGH | Active Directory Domain Services Elevation of Privilege Vulnerability |
| CVE-2022-21850 | 8.8 HIGH | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2022-21840 | 8.8 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2022-21837 | 8.3 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
| CVE-2022-21893 | 8.0 HIGH | Remote Desktop Protocol Remote Code Execution Vulnerability |
| CVE-2022-21885 | 7.8 HIGH | Windows Remote Access Connection Manager Elevation of Privilege Vulnerability |
| CVE-2022-21902 | 7.8 HIGH | Windows DWM Core Library Elevation of Privilege Vulnerability |
| CVE-2022-21833 | 7.8 HIGH | Virtual Machine IDE Drive Elevation of Privilege Vulnerability |
| CVE-2022-21835 | 7.8 HIGH | Microsoft Cryptographic Services Elevation of Privilege Vulnerability |
| CVE-2022-21836 | 7.8 HIGH | Windows Certificate Spoofing Vulnerability |
| CVE-2022-21895 | 7.8 HIGH | Windows User Profile Service Elevation of Privilege Vulnerability |
Showing top 20 of 100 CVEs. View all on vendor page → →
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V. Comments for CVE-2022-21911
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