CVE-2021-34442— Windows DNS Server Remote Code Execution Vulnerability
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2021-34442
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Windows DNS Server Remote Code Execution Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Windows DNS Server Remote Code Execution Vulnerability
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Windows DNS 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows DNS是美国微软（Microsoft）公司的一个域名解析服务。域名系统（DNS）是包含TCP / IP的行业标准协议套件之一，并且DNS客户端和DNS服务器共同为计算机和用户提供计算机名称到IP地址的映射名称解析服务。 Microsoft Windows DNS Server存在输入验证错误漏洞。以下产品和版本受到影响：Windows Server 2019,Windows Server 2012,Windows Server 2012 (Server Core ins
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 | Windows Server 2019 | 10.0.0 ~ 10.0.17763.2061 | cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2061:*:*:*:*:*:*:* | |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.0 ~ 10.0.17763.2061 | cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2061:*:*:*:*:*:*:* | |
| Microsoft | Windows Server version 2004 | 10.0.0 ~ 10.0.19041.1110 | cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1110:*:*:*:*:*:*:* | |
| Microsoft | Windows Server version 20H2 | 10.0.0 ~ 10.0.19042.1110 | cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1110:*:*:*:*:*:*:* | |
| Microsoft | Windows Server 2016 | 10.0.0 ~ 10.0.14393.4530 | cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4530:*:*:*:*:*:*:* | |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.0 ~ 10.0.14393.4530 | cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4530:*:*:*:*:*:*:* | |
| Microsoft | Windows Server 2008 Service Pack 2 | 6.0.0 ~ 6.0.6003.21167 | cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21167:*:*:*:*:*:x64:* | |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | 6.0.0 ~ 6.0.6003.21167 | cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21167:*:*:*:*:*:x64:* | |
| Microsoft | Windows Server 2008 Service Pack 2 | 6.0.0 ~ 6.0.6003.21167 | cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21167:*:*:*:*:*:x86:* | |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | 6.1.0 ~ 6.1.7601.25661 | cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25661:*:*:*:*:*:x64:* | |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | 6.0.0 ~ 6.1.7601.25661 | cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25661:*:*:*:*:*:x64:* | |
| Microsoft | Windows Server 2012 | 6.2.0 ~ 6.2.9200.23409 | cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23409:*:*:*:*:*:x64:* | |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.0 ~ 6.2.9200.23409 | cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23409:*:*:*:*:*:x64:* | |
| Microsoft | Windows Server 2012 R2 | 6.3.0 ~ 6.3.9600.20069 | cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20069:*:*:*:*:*:x64:* | |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.0 ~ 6.3.9600.20069 | cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20069:*:*:*:*:*:x64:* |
II. Public POCs for CVE-2021-34442
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-34442
请登录查看更多情报信息。
Same Patch Batch · Microsoft · 2021-07-16 · 27 CVEs total
| CVE-2021-34458 | 9.9 CRITICAL | Windows Kernel Remote Code Execution Vulnerability |
| CVE-2021-34481 | 8.8 HIGH | Windows Print Spooler Remote Code Execution Vulnerability |
| CVE-2021-34450 | 8.5 HIGH | Windows Hyper-V Remote Code Execution Vulnerability |
| CVE-2021-34446 | 8.0 HIGH | Windows HTML Platforms Security Feature Bypass Vulnerability |
| CVE-2021-34452 | 7.8 HIGH | Microsoft Word Remote Code Execution Vulnerability |
| CVE-2021-34438 | 7.8 HIGH | Windows Font Driver Host Remote Code Execution Vulnerability |
| CVE-2021-34439 | 7.8 HIGH | Microsoft Windows Media Foundation Remote Code Execution Vulnerability |
| CVE-2021-34441 | 7.8 HIGH | Microsoft Windows Media Foundation Remote Code Execution Vulnerability |
| CVE-2021-34445 | 7.8 HIGH | Windows Remote Access Connection Manager Elevation of Privilege Vulnerability |
| CVE-2021-34455 | 7.8 HIGH | Windows File History Service Elevation of Privilege Vulnerability |
| CVE-2021-34456 | 7.8 HIGH | Windows Remote Access Connection Manager Elevation of Privilege Vulnerability |
| CVE-2021-34459 | 7.8 HIGH | Windows AppContainer Elevation Of Privilege Vulnerability |
| CVE-2021-34460 | 7.8 HIGH | Storage Spaces Controller Elevation of Privilege Vulnerability |
| CVE-2021-34461 | 7.8 HIGH | Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability |
| CVE-2021-34464 | 7.8 HIGH | Microsoft Defender Remote Code Execution Vulnerability |
| CVE-2021-34467 | 7.1 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
| CVE-2021-34449 | 7.0 HIGH | Win32k Elevation of Privilege Vulnerability |
| CVE-2021-34462 | 7.0 HIGH | Windows AppX Deployment Extensions Elevation of Privilege Vulnerability |
| CVE-2021-34448 | 6.8 MEDIUM | Scripting Engine Memory Corruption Vulnerability |
| CVE-2021-34447 | 6.8 MEDIUM | Windows MSHTML Platform Remote Code Execution Vulnerability |
Showing top 20 of 27 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Windows Server 2019
- CVE-2026-21243
Windows Lightweight Directory Access Protocol (LDAP) Denial - CVE-2024-49128
Windows Remote Desktop Services Remote Code Execution Vulner - CVE-2024-49116
Windows Remote Desktop Services Remote Code Execution Vulner - CVE-2024-49129
Windows Remote Desktop Gateway (RD Gateway) Denial of Servic - CVE-2024-49125
Windows Routing and Remote Access Service (RRAS) Remote Code
Same vendor: Microsoft
- CVE-2026-42826
Azure DevOps Information Disclosure Vulnerability - CVE-2026-35428
Azure Cloud Shell Spoofing Vulnerability - CVE-2026-35435
Azure AI Foundry Elevation of Privilege Vulnerability - CVE-2026-34327
Microsoft Partner Center Spoofing Vulnerability - CVE-2026-33844
Azure Managed Instance for Apache Cassandra Remote Code Exec
V. Comments for CVE-2021-34442
No comments yet