Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is unauthorized file system access - reading from the file system.
Security updates
10.0.17134.2087 — https://support.microsoft.com/help/5000809
10.0.17763.1817 — https://support.microsoft.com/help/5000822
10.0.18363.1440 — https://support.microsoft.com/help/5000808
10.0.19043.867 — https://support.microsoft.com/help/5000802
10.0.10240.18874 — https://support.microsoft.com/help/5000807
10.0.14393.4283 — https://support.microsoft.com/help/5000803
6.1.7601.24566 — https://support.microsoft.com/help/5000841
Security Only — https://support.microsoft.com/help/5000851
6.3.9600.19968 — https://support.microsoft.com/help/5000848
Security Only — https://support.microsoft.com/help/5000853
6.2.9200.23298 — https://support.microsoft.com/help/5000847
Security Only — https://support.microsoft.com/help/5000840
Vulnerabilities 1
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Medium 5.5
Windows ActiveX Installer Service Information Disclosure Vulnerability
Windows ActiveX Installer Service Information Disclosure Vulnerability
Revision history
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#1
Information published.
References
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CVE-2021-26869 Windows ActiveX Installer Service Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26869
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss