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CVE-2021-34462— Windows AppX Deployment Extensions Elevation of Privilege Vulnerability

CVSS 7.0 · High EPSS 0.85% · P55

Possible ATT&CK Techniques 1AI

T1218 · System Binary Proxy Execution

Affected Version Matrix 14

VendorProductVersion RangeStatus
MicrosoftWindows 10 Version 150710.0.10240.0< 10.0.10240.19003affected
MicrosoftWindows 10 Version 160710.0.14393.0< 10.0.14393.4530affected
MicrosoftWindows 10 Version 180910.0.17763.0< 10.0.17763.2061affected
10.0.0< 10.0.17763.2061affected
MicrosoftWindows 10 Version 190910.0.0< 10.0.18363.1679affected
MicrosoftWindows 10 Version 200410.0.0< 10.0.19041.1110affected
MicrosoftWindows 10 Version 20H210.0.0< 10.0.19042.1110affected
MicrosoftWindows 10 Version 21H110.0.0< 10.0.19043.1110affected
MicrosoftWindows Server 201610.0.14393.0< 10.0.14393.4530affected
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0< 10.0.14393.4530affected
MicrosoftWindows Server 201910.0.17763.0< 10.0.17763.2061affected
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0< 10.0.17763.2061affected
MicrosoftWindows Server version 200410.0.0< 10.0.19041.1110affected
MicrosoftWindows Server version 20H210.0.0< 10.0.19042.1110affected
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I. Basic Information for CVE-2021-34462

Vulnerability Information
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Vulnerability Title
Windows AppX Deployment Extensions Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows AppX Deployment Extensions Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows AppX Deployment Extensions 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows AppX Deployment Extensions是美国微软（Microsoft）公司的一个AppX 部署扩展DLL，是 Microsoft Windows 操作系统的一部分。 Microsoft Windows AppX Deployment Extensions 存在竞争条件问题漏洞。以下产品和版本受到影响：Windows Server 2019 (Server Core installation),Windows 10 Version 1909 for 32-b
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

VendorProductAffected VersionsCPESubscribe
MicrosoftWindows 10 Version 1507 10.0.10240.0 ~ 10.0.10240.19003 -
MicrosoftWindows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.4530 -
MicrosoftWindows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.2061 -
MicrosoftWindows 10 Version 1809 10.0.0 ~ 10.0.17763.2061 -
MicrosoftWindows 10 Version 1909 10.0.0 ~ 10.0.18363.1679 -
MicrosoftWindows 10 Version 2004 10.0.0 ~ 10.0.19041.1110 -
MicrosoftWindows 10 Version 20H2 10.0.0 ~ 10.0.19042.1110 -
MicrosoftWindows 10 Version 21H1 10.0.0 ~ 10.0.19043.1110 -
MicrosoftWindows Server 2016 10.0.14393.0 ~ 10.0.14393.4530 -
MicrosoftWindows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.4530 -
MicrosoftWindows Server 2019 10.0.17763.0 ~ 10.0.17763.2061 -
MicrosoftWindows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.2061 -
MicrosoftWindows Server version 2004 10.0.0 ~ 10.0.19041.1110 -
MicrosoftWindows Server version 20H2 10.0.0 ~ 10.0.19042.1110 -

II. Public POCs for CVE-2021-34462

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III. Intelligence Information for CVE-2021-34462

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Vendor Advisories for CVE-2021-34462 (3)

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

CVE-2021-344589.9 CRITICALWindows Kernel Remote Code Execution Vulnerability
CVE-2021-344818.8 HIGHWindows Print Spooler Remote Code Execution Vulnerability
CVE-2021-344428.8 HIGHWindows DNS Server Remote Code Execution Vulnerability
CVE-2021-344508.5 HIGHWindows Hyper-V Remote Code Execution Vulnerability
CVE-2021-344468.0 HIGHWindows HTML Platforms Security Feature Bypass Vulnerability
CVE-2021-344607.8 HIGHWindows Storage Spaces Controller Elevation of Privilege Vulnerability
CVE-2021-344597.8 HIGHWindows AppContainer Elevation Of Privilege Vulnerability
CVE-2021-344617.8 HIGHWindows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability
CVE-2021-344397.8 HIGHMicrosoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2021-344567.8 HIGHWindows Remote Access Connection Manager Elevation of Privilege Vulnerability
CVE-2021-344387.8 HIGHWindows Font Driver Host Remote Code Execution Vulnerability
CVE-2021-344557.8 HIGHWindows File History Service Elevation of Privilege Vulnerability
CVE-2021-344527.8 HIGHMicrosoft Word Remote Code Execution Vulnerability
CVE-2021-344417.8 HIGHMicrosoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2021-344647.8 HIGHMicrosoft Defender Remote Code Execution Vulnerability
CVE-2021-344457.8 HIGHWindows Remote Access Connection Manager Elevation of Privilege Vulnerability
CVE-2021-344677.1 HIGHMicrosoft SharePoint Server Remote Code Execution Vulnerability
CVE-2021-344497.0 HIGHWin32k Elevation of Privilege Vulnerability
CVE-2021-344476.8 MEDIUMWindows MSHTML Platform Remote Code Execution Vulnerability
CVE-2021-344486.8 MEDIUMScripting Engine Memory Corruption 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-2021-34462

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