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CVE-2021-43211— Windows 10 Update Assistant Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows Update Assistant
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 Update Assistant是美国微软（Microsoft）公司的一款系统更新工具。 Microsoft Windows Update Assistant 存在安全漏洞，该漏洞源于软件对于权限处理缺少过滤和限制。攻击者可以删除系统上的目标文件，但他们不会获得查看或修改文件内容的权限。

CVSS 5.5 · Medium EPSS 0.83% · P55

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 1

VendorProduct Version RangeStatus
Microsoft Windows Update Assistant 10.0.0< publication affected
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I. Basic Information for CVE-2021-43211

Vulnerability Information
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Vulnerability Title
Windows 10 Update Assistant Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows 10 Update Assistant Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/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 Windows Update Assistant 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Update Assistant是美国微软（Microsoft）公司的一款系统更新工具。 Microsoft Windows Update Assistant 存在安全漏洞，该漏洞源于软件对于权限处理缺少过滤和限制。攻击者可以删除系统上的目标文件，但他们不会获得查看或修改文件内容的权限。
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 Update Assistant 10.0.0 ~ publication -

II. Public POCs for CVE-2021-43211

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III. Intelligence Information for CVE-2021-43211

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Vendor Advisories for CVE-2021-43211 (1)

Same Patch Batch · Microsoft · 2021-11-24 · 6 CVEs total

CVE-2021-42306 8.1 HIGH Azure Active Directory Information Disclosure Vulnerability
CVE-2021-42297 5.0 MEDIUM Windows 10 Update Assistant Elevation of Privilege Vulnerability
CVE-2021-43221 4.2 MEDIUM Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2021-43220 3.1 LOW Microsoft Edge for iOS Spoofing Vulnerability
CVE-2021-42308 3.1 LOW Microsoft Edge (Chromium-based) Spoofing Vulnerability

IV. Related Vulnerabilities

Same product: Windows Update Assistant
Same vendor: Microsoft

V. Comments for CVE-2021-43211

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