CVE-2021-43883: Windows Installer Elevation of Privilege Vulnerability
First published: Wed Dec 15 2021(Updated: )
Windows Installer Elevation of Privilege Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 11 | ||
| Microsoft Windows 11 | ||
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 8.1 | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server | =20h2 | |
| Microsoft Windows Server | =2022 | |
| Microsoft Windows Server 2008 Itanium | =r2-sp1 | |
| Microsoft Windows Server 2008 Itanium | =r2-sp2 | |
| Microsoft Windows Server 2008 Itanium | =r2-sp2 | |
| Microsoft Windows Server 2012 x64 | ||
| Microsoft Windows Server 2012 x64 | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 |
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Frequently Asked Questions
What is CVE-2021-43883?
CVE-2021-43883 is a Windows Installer Elevation of Privilege Vulnerability.
What operating systems are affected by CVE-2021-43883?
CVE-2021-43883 affects Microsoft Windows 10 (x64 and x86), Windows 11, Windows 7, Windows 8.1, Windows RT 8.1, and Windows Server (20h2 and 2022).
How severe is CVE-2021-43883?
CVE-2021-43883 has a severity rating of 7.8, which is considered high.
How can I fix CVE-2021-43883?
To fix CVE-2021-43883, apply the security patches provided by Microsoft.
Where can I find more information about CVE-2021-43883?
You can find more information about CVE-2021-43883 on the Microsoft Security Guidance Advisory page.
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- canonical/microsoft windows 10
- version/microsoft windows 10/20h2
- version/microsoft windows 10/21h1
- version/microsoft windows 10/21h2
- version/microsoft windows 10/1607
- version/microsoft windows 10/1809
- version/microsoft windows 10/1909
- version/microsoft windows 10/2004
- canonical/microsoft windows 11
- canonical/microsoft windows 7
- version/microsoft windows 7/sp1
- canonical/microsoft windows 8.1
- canonical/microsoft windows rt
- canonical/microsoft windows server
- version/microsoft windows server/20h2
- version/microsoft windows server/2022
- canonical/microsoft windows server 2008 itanium
- version/microsoft windows server 2008 itanium/r2-sp1
- version/microsoft windows server 2008 itanium/r2-sp2
- canonical/microsoft windows server 2012 x64
- version/microsoft windows server 2012 x64/r2
- canonical/microsoft windows server 2016
- version/microsoft windows server 2016/2004
- canonical/microsoft windows server 2019