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CVE-2021-34446— Windows HTML Platforms Security Feature Bypass Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1507
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 Windows是美国微软（Microsoft）公司的一种桌面操作系统。 microsoft Windows HTML Platform存在安全特征问题漏洞。以下产品和版本受到影响：Windows 10 Version 20H2 for ARM64-based Systems,Windows 10 for 32-bit Systems,Windows 10 for x64-based Systems,Windows 10 Version 1607 for 32-bit Systems,W

CVSS 8.0 · High EPSS 2.04% · P79

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 17

VendorProduct Version RangeStatus
Microsoft Windows 10 Version 1507 10.0.10240.0< 10.0.10240.19003 affected
Microsoft Windows 10 Version 1607 10.0.14393.0< 10.0.14393.4530 affected
Microsoft Windows 10 Version 1809 10.0.17763.0< 10.0.17763.2061 affected
10.0.0< 10.0.17763.2061 affected
Microsoft Windows 10 Version 1909 10.0.0< 10.0.18363.1679 affected
Microsoft Windows 10 Version 2004 10.0.0< 10.0.19041.1110 affected
Microsoft Windows 10 Version 20H2 10.0.0< 10.0.19042.1110 affected
Microsoft Windows 10 Version 21H1 10.0.0< 10.0.19043.1110 affected
Microsoft Windows 7 6.1.0< 6.1.7601.25661 affected
Microsoft Windows 7 Service Pack 1 6.1.0< 6.1.7601.25661 affected
Microsoft Windows 8.1 6.3.0< 6.3.9600.20069 affected
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0< 6.1.7601.25661 affected
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0< 6.0.6003.21167 affected
Microsoft Windows Server 2012 6.2.9200.0< 6.2.9200.23409 affected
Microsoft Windows Server 2012 R2 6.3.9600.0< 6.3.9600.20069 affected
Microsoft Windows Server 2016 10.0.14393.0< 10.0.14393.4530 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.2061 affected
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I. Basic Information for CVE-2021-34446

Vulnerability Information
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Vulnerability Title
Windows HTML Platforms Security Feature Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows HTML Platforms Security Feature Bypass Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows是美国微软（Microsoft）公司的一种桌面操作系统。 microsoft Windows HTML Platform存在安全特征问题漏洞。以下产品和版本受到影响：Windows 10 Version 20H2 for ARM64-based Systems,Windows 10 for 32-bit Systems,Windows 10 for x64-based Systems,Windows 10 Version 1607 for 32-bit Systems,W
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 10 Version 1507 10.0.10240.0 ~ 10.0.10240.19003 -
Microsoft Windows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.4530 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.2061 -
Microsoft Windows 10 Version 1809 10.0.0 ~ 10.0.17763.2061 -
Microsoft Windows 10 Version 1909 10.0.0 ~ 10.0.18363.1679 -
Microsoft Windows 10 Version 2004 10.0.0 ~ 10.0.19041.1110 -
Microsoft Windows 10 Version 20H2 10.0.0 ~ 10.0.19042.1110 -
Microsoft Windows 10 Version 21H1 10.0.0 ~ 10.0.19043.1110 -
Microsoft Windows 7 6.1.0 ~ 6.1.7601.25661 -
Microsoft Windows 7 Service Pack 1 6.1.0 ~ 6.1.7601.25661 -
Microsoft Windows 8.1 6.3.0 ~ 6.3.9600.20069 -
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 ~ 6.1.7601.25661 -
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 ~ 6.0.6003.21167 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.23409 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.20069 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.4530 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.2061 -

II. Public POCs for CVE-2021-34446

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III. Intelligence Information for CVE-2021-34446

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Vendor Advisories for CVE-2021-34446 (2)

Same Patch Batch · Microsoft · 2021-07-16 · 27 CVEs total

CVE-2021-34458 9.9 CRITICAL Windows Kernel Remote Code Execution Vulnerability
CVE-2021-34442 8.8 HIGH Windows DNS Server 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-2021-34452 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 Windows 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 &rarr; →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1507
Same vendor: Microsoft

V. Comments for CVE-2021-34446

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