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CVE-2021-26869— Windows ActiveX Installer Service Information Disclosure 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。 Windows ActiveX 安装程序服务存在信息泄露漏洞。以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-based Systems,Windows 10 Version 1809 for ARM64-based Systems,Windows Server 2019,Windows S

CVSS 5.5 · Medium EPSS 0.96% · P59

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle

Affected Version Matrix 24

VendorProduct Version RangeStatus
Microsoft Windows 10 Version 1507 10.0.10240.0< 10.0.10240.18874 affected
Microsoft Windows 10 Version 1607 10.0.14393.0< 10.0.14393.4283 affected
Microsoft Windows 10 Version 1803 10.0.0< 10.0.17134.2087 affected
Microsoft Windows 10 Version 1809 10.0.17763.0< 10.0.17763.1817 affected
10.0.0< 10.0.17763.1817 affected
Microsoft Windows 10 Version 1909 10.0.0< 10.0.18363.1440 affected
Microsoft Windows 10 Version 2004 10.0.0< 10.0.19043.867 affected
Microsoft Windows 10 Version 20H2 10.0.0< 10.0.19043.867 affected
Microsoft Windows 7 6.1.0< 6.1.7601.24566 affected
Microsoft Windows 7 Service Pack 1 6.1.0< 6.1.7601.24566 affected
Microsoft Windows 8.1 6.3.0< 6.3.9600.19968 affected
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0< 6.1.7601.24566 affected
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0< 6.1.7601.24566 affected
Microsoft Windows Server 2012 6.2.9200.0< 6.2.9200.23298 affected
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0< 6.2.9200.23298 affected
Microsoft Windows Server 2012 R2 6.3.9600.0< 6.3.9600.19968 affected
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0< 6.3.9600.19968 affected
Microsoft Windows Server 2016 10.0.14393.0< 10.0.14393.4283 affected
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0< 10.0.14393.4283 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.1817 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.1817 affected
Microsoft Windows Server version 2004 10.0.0< 10.0.19043.867 affected
Microsoft Windows Server version 20H2 10.0.0< 10.0.19043.867 affected
Microsoft Windows Server, version 1909 (Server Core installation) 10.0.0< 10.0.18363.1440 affected
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I. Basic Information for CVE-2021-26869

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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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 ActiveX Installer Service Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows ActiveX Installer Service Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows 信息泄露漏洞
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。 Windows ActiveX 安装程序服务存在信息泄露漏洞。以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-based Systems,Windows 10 Version 1809 for ARM64-based Systems,Windows Server 2019,Windows S
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 ~ 10.0.10240.18874 -
Microsoft Windows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.4283 -
Microsoft Windows 10 Version 1803 10.0.0 ~ 10.0.17134.2087 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.1817 -
Microsoft Windows 10 Version 1809 10.0.0 ~ 10.0.17763.1817 -
Microsoft Windows 10 Version 1909 10.0.0 ~ 10.0.18363.1440 -
Microsoft Windows 10 Version 2004 10.0.0 ~ 10.0.19043.867 -
Microsoft Windows 10 Version 20H2 10.0.0 ~ 10.0.19043.867 -
Microsoft Windows 7 6.1.0 ~ 6.1.7601.24566 -
Microsoft Windows 7 Service Pack 1 6.1.0 ~ 6.1.7601.24566 -
Microsoft Windows 8.1 6.3.0 ~ 6.3.9600.19968 -
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 ~ 6.1.7601.24566 -
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 ~ 6.1.7601.24566 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.23298 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.23298 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.19968 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.19968 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.4283 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.4283 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.1817 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.1817 -
Microsoft Windows Server version 2004 10.0.0 ~ 10.0.19043.867 -
Microsoft Windows Server version 20H2 10.0.0 ~ 10.0.19043.867 -
Microsoft Windows Server, version 1909 (Server Core installation) 10.0.0 ~ 10.0.18363.1440 -

II. Public POCs for CVE-2021-26869

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III. Intelligence Information for CVE-2021-26869

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Vendor Advisories for CVE-2021-26869 (2)

Same Patch Batch · Microsoft · 2021-03-11 · 80 CVEs total

CVE-2021-26867 9.9 CRITICAL Windows Hyper-V Remote Code Execution Vulnerability
CVE-2021-26877 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-26897 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-26893 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-26894 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-26895 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-27080 9.3 CRITICAL Azure Sphere Unsigned Code Execution Vulnerability
CVE-2021-26865 8.8 HIGH Windows Container Execution Agent Elevation of Privilege Vulnerability
CVE-2021-27085 8.8 HIGH Internet Explorer Remote Code Execution Vulnerability
CVE-2021-26411 8.8 HIGH Internet Explorer Memory Corruption Vulnerability
CVE-2021-26876 8.8 HIGH OpenType Font Parsing Remote Code Execution Vulnerability
CVE-2021-27076 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2021-26864 8.4 HIGH Windows Virtual Registry Provider Elevation of Privilege Vulnerability
CVE-2021-26860 7.8 HIGH Windows App-V Overlay Filter Elevation of Privilege Vulnerability
CVE-2021-26882 7.8 HIGH Remote Access API Elevation of Privilege Vulnerability
CVE-2021-26885 7.8 HIGH Windows WalletService Elevation of Privilege Vulnerability
CVE-2021-26887 7.8 HIGH Microsoft Windows Folder Redirection Elevation of Privilege Vulnerability
CVE-2021-26889 7.8 HIGH Windows Update Stack Elevation of Privilege Vulnerability
CVE-2021-26890 7.8 HIGH Application Virtualization Remote Code Execution Vulnerability
CVE-2021-27057 7.8 HIGH Microsoft Office Remote Code Execution Vulnerability

Showing top 20 of 80 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1507
Same vendor: Microsoft

V. Comments for CVE-2021-26869

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