CVE-2021-26869: Windows ActiveX Installer Service Information Disclosure Vulnerability
First published: Thu Mar 11 2021(Updated: )
Windows ActiveX Installer Service Information Disclosure Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| =20h2 | ||
| =1607 | ||
| =1803 | ||
| =1809 | ||
| =1909 | ||
| =2004 | ||
| =sp1 | ||
| =r2 | ||
| =r2 | ||
| =20h2 | ||
| =1909 | ||
| =2004 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1803 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT 8.1 | ||
| Microsoft Windows Server 2008 | =r2 | |
| Microsoft Windows Server 2012 | ||
| Microsoft Windows Server 2012 | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2016 | =1909 | |
| Microsoft Windows Server 2016 | =2004 |
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Frequently Asked Questions
What is CVE-2021-26869?
CVE-2021-26869 is a vulnerability in the Windows ActiveX Installer Service that allows for information disclosure.
Which software is affected by CVE-2021-26869?
CVE-2021-26869 affects Microsoft Windows 10, Windows 7, Windows 8.1, Windows RT 8.1, and various versions of Windows Server.
What is the severity of CVE-2021-26869?
CVE-2021-26869 has a severity rating of 5.5, which is considered medium.
How does CVE-2021-26869 allow for information disclosure?
CVE-2021-26869 allows an attacker to view sensitive information on a vulnerable system.
Is there a fix available for CVE-2021-26869?
Yes, Microsoft has released a security update to address CVE-2021-26869. It is recommended to apply the update as soon as possible.
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- collector/mitre-cve
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- vendor/microsoft
- canonical/microsoft windows 10
- version/microsoft windows 10/20h2
- version/microsoft windows 10/1607
- version/microsoft windows 10/1803
- version/microsoft windows 10/1809
- version/microsoft windows 10/1909
- version/microsoft windows 10/2004
- canonical/microsoft windows 7
- version/microsoft windows 7/sp1
- canonical/microsoft windows 8.1
- canonical/microsoft windows rt 8.1
- canonical/microsoft windows server 2008
- version/microsoft windows server 2008/r2
- canonical/microsoft windows server 2012
- version/microsoft windows server 2012/r2
- canonical/microsoft windows server 2016
- version/microsoft windows server 2016/20h2
- version/microsoft windows server 2016/1909
- version/microsoft windows server 2016/2004