CVE-2021-43883: Windows Installer Elevation of Privilege Vulnerability

Published Dec 15, 2021
·
Updated

Windows Installer Elevation of Privilege Vulnerability

Affected Software

39 affected components
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 8.1
Microsoft Windows Server=20h2
Microsoft Windows Server=2022
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2008=r2-sp2
Microsoft Windows Server 2008=r2-sp2
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019

Remediation

Patch Available

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43883

Event History

Dec 15, 2021
CVE Published
via MITRE·02:15 PM
Data Sourced
via MITRE·02:15 PM
DescriptionSeverity
Data Sourced
via NVD·03:15 PM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is CVE-2021-43883?

CVE-2021-43883 is a Windows Installer Elevation of Privilege Vulnerability.

2

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).

3

How severe is CVE-2021-43883?

CVE-2021-43883 has a severity rating of 7.8, which is considered high.

4

How can I fix CVE-2021-43883?

To fix CVE-2021-43883, apply the security patches provided by Microsoft.

5

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.

Company

Resources

Contact

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