First published: Tue Jan 12 2021(Updated: )
Windows Installer Elevation of Privilege Vulnerability
Credit: secure@microsoft.com
Affected Software | Affected Version | How to fix |
---|---|---|
Microsoft Windows 7 | ||
Microsoft Windows Server | =20H2 | |
Microsoft Windows 10 | =1909 | |
Microsoft Windows 10 | =1803 | |
Microsoft Windows 10 | =1909 | |
Microsoft Windows 10 | =1803 | |
Microsoft Windows 10 | =1803 | |
Microsoft Windows 10 | =2004 | |
Microsoft Windows Server 2016 | ||
Microsoft Windows 10 | =20H2 | |
Microsoft Windows Server 2019 | ||
Microsoft Windows 10 | =1809 | |
Microsoft Windows 8.1 for x64-based systems | ||
Microsoft Windows Server 2012 R2 | ||
Microsoft Windows Server 2019 | ||
Microsoft Windows 10 | =1809 | |
Microsoft Windows Server 2008 R2 | ||
Microsoft Windows 10 | =2004 | |
Microsoft Windows Server | =2004 | |
Microsoft Windows Server 2012 R2 | ||
Microsoft Windows Server 2016 | ||
Microsoft Windows 10 | ||
Microsoft Windows 8.1 for 32-bit systems | ||
Microsoft Windows Server 2008 R2 | ||
Microsoft Windows 10 | =1809 | |
Microsoft Windows 10 | =1909 | |
Microsoft Windows 10 | =2004 | |
Microsoft Windows 10 | =1607 | |
Microsoft Windows 10 | ||
Microsoft Windows 7 | ||
Microsoft Windows 10 | =20H2 | |
Microsoft Windows Server | =1909 | |
Microsoft Windows 10 | =1607 | |
Microsoft Windows RT | ||
Microsoft Windows Server | ||
Microsoft Windows Server | ||
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 | ||
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =r2-sp1 | |
Microsoft Windows Server | ||
Microsoft Windows Server | =r2 | |
Microsoft Windows Server 2016 | ||
Microsoft Windows Server 2016 | =20h2 | |
Microsoft Windows Server 2016 | =1909 | |
Microsoft Windows Server 2016 | =2004 | |
Microsoft Windows Server 2019 | ||
Microsoft Windows Server | ||
Microsoft Windows Server | ||
Microsoft Windows Server | ||
Microsoft Windows Server |
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The severity of CVE-2021-1661 is rated as important.
To fix CVE-2021-1661, you should install the security updates provided by Microsoft for affected Windows products.
CVE-2021-1661 affects multiple versions including Windows 7, Windows 10, Windows 8.1, and various Windows Server editions.
CVE-2021-1661 is identified as an Elevation of Privilege vulnerability.
CVE-2021-1661 requires local access to exploit, thus it cannot be exploited remotely.