Nov 2021: Windows Installer Elevation of Privilege Vulnerability
CVE-2021-41379 Published on November 10, 2021

Windows Installer Elevation of Privilege Vulnerability
Windows Installer Elevation of Privilege Vulnerability

NVD

Known Exploited Vulnerability

This Microsoft Windows Installer Privilege Escalation Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Microsoft Windows Installer contains an unspecified vulnerability which allows for privilege escalation.

The following remediation steps are recommended / required by March 17, 2022: Apply updates per vendor instructions.

Weakness Type

What is an insecure temporary file Vulnerability?

The software attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

CVE-2021-41379 has been classified to as an insecure temporary file vulnerability or weakness.

Products Associated with CVE-2021-41379

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-41379 are published in these products:

Microsoft Windows 10

Microsoft Windows 11

Microsoft Windows 7

Microsoft Windows 8.1

Microsoft Windows Rt 8 1

Microsoft Windows Server 2008

Microsoft Windows Server 2012

Microsoft Windows Server 2016

Microsoft Windows Server 2019

Microsoft Windows Server 2022

Microsoft Windows Server 2004

Microsoft Windows Server 20h2

Microsoft Windows 10 1909

Microsoft Windows 10 21h1

Microsoft Windows 10 2004

Microsoft Windows 10 1507

Microsoft Windows Server 2008 Sp2

Microsoft Windows Server 2008 R2

Microsoft Windows Server 2012 R2

Affected Versions

Microsoft Windows 10 Version 1809:

Version 10.0.0 and below 10.0.17763.2300 is affected.

Microsoft Windows Server 2019:

Version 10.0.0 and below 10.0.17763.2300 is affected.

Microsoft Windows Server 2019 (Server Core installation):

Version 10.0.0 and below 10.0.17763.2300 is affected.

Microsoft Windows 10 Version 1909:

Version 10.0.0 and below 10.0.18363.1916 is affected.

Microsoft Windows 10 Version 21H1:

Version 10.0.0 and below 10.0.19043.1348 is affected.

Microsoft Windows Server 2022:

Version 10.0.0 and below 10.0.20348.350 is affected.

Microsoft Windows 10 Version 2004:

Version 10.0.0 and below 10.0.19041.1348 is affected.

Microsoft Windows Server version 2004:

Version 10.0.0 and below 10.0.19041.1348 is affected.

Microsoft Windows 10 Version 20H2:

Version 10.0.0 and below 10.0.19042.1348 is affected.

Microsoft Windows Server version 20H2:

Version 10.0.0 and below 10.0.19042.1348 is affected.

Microsoft Windows 11 version 21H2:

Version 10.0.0 and below 10.0.22000.318 is affected.

Microsoft Windows 10 Version 1507:

Version 10.0.0 and below 10.0.10240.19119 is affected.

Microsoft Windows 10 Version 1607:

Version 10.0.0 and below 10.0.14393.4770 is affected.

Microsoft Windows Server 2016:

Version 10.0.0 and below 10.0.14393.4770 is affected.

Microsoft Windows Server 2016 (Server Core installation):

Version 10.0.0 and below 10.0.14393.4770 is affected.

Microsoft Windows 7:

Version 6.1.0 and below 6.1.7601.25769 is affected.

Microsoft Windows 7 Service Pack 1:

Version 6.1.0 and below 6.1.7601.25769 is affected.

Microsoft Windows 8.1:

Version 6.3.0 and below 6.3.9600.20174 is affected.

Microsoft Windows Server 2008 Service Pack 2:

Version 6.0.0 and below 6.0.6003.21282 is affected.

Microsoft Windows Server 2008 Service Pack 2 (Server Core installation):

Version 6.0.0 and below 6.0.6003.21282 is affected.

Microsoft Windows Server 2008 Service Pack 2:

Version 6.0.0 and below 6.0.6003.21282 is affected.

Microsoft Windows Server 2008 R2 Service Pack 1:

Version 6.1.0 and below 6.1.7601.25769 is affected.

Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation):

Version 6.0.0 and below 6.1.7601.25769 is affected.

Microsoft Windows Server 2012:

Version 6.2.0 and below 6.2.9200.23517 is affected.

Microsoft Windows Server 2012 (Server Core installation):

Version 6.2.0 and below 6.2.9200.23517 is affected.

Microsoft Windows Server 2012 R2:

Version 6.3.0 and below 6.3.9600.20174 is affected.

Microsoft Windows Server 2012 R2 (Server Core installation):

Version 6.3.0 and below 6.3.9600.20174 is affected.

Exploit Probability

EPSS

1.16%

Percentile

78.30%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.