CVE-2021-41379: Microsoft Windows Installer Service Link Following Privilege Escalation Vulnerability
First published: Tue Nov 09 2021(Updated: )
Microsoft Windows Installer contains an unspecified vulnerability that allows for privilege escalation.
Credit: secure@microsoft.com secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows Server | =20H2 | |
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows 10 | =20H2 | |
| Microsoft Windows 10 | =21H1 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =20H2 | |
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 7 | ||
| Microsoft Windows 10 | =21H1 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows Server | =2004 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 10 | =20H2 | |
| Microsoft Windows 7 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows 10 | =21H1 | |
| Microsoft Windows RT | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows 10 | <10.0.10240.19119 | |
| Microsoft Windows 10 | <10.0.14393.4770 | |
| Microsoft Windows 10 | <10.0.17763.2300 | |
| Microsoft Windows 10 | <10.0.18363.1916 | |
| Microsoft Windows 10 | <10.0.19041.1348 | |
| Microsoft Windows 10 | <10.0.19042.1348 | |
| Microsoft Windows 10 | <10.0.19043.1348 | |
| Windows 11 | <10.0.22000.318 | |
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server 2004 | <10.0.19041.1348 | |
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =r2-sp1 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Server 2016 | <10.0.14393.4770 | |
| Microsoft Windows Server 2019 | <10.0.17763.2300 | |
| Microsoft Windows Server 2022 | <10.0.20348.350 | |
| Microsoft Windows Server 20H2 | <10.0.19042.1348 | |
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =2004 | |
| Windows 11 | ||
| Windows 11 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2019 | ||
| Windows 11 | =21H2 | |
| Windows 11 | =21H2 | |
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2022 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-41379?
CVE-2021-41379 has been classified as a high severity vulnerability that allows for privilege escalation in Microsoft Windows Installer.
How do I fix CVE-2021-41379?
To mitigate CVE-2021-41379, apply the relevant security patches provided by Microsoft for your version of Windows.
Which versions of Windows are affected by CVE-2021-41379?
CVE-2021-41379 affects multiple versions of Microsoft Windows including Windows 10, Windows 11, and various Windows Server versions.
Is there a workaround for CVE-2021-41379?
Currently, Microsoft recommends applying the security updates as the primary means of protection against CVE-2021-41379.
How does CVE-2021-41379 impact system security?
CVE-2021-41379 potentially allows attackers to elevate their privileges, which may lead to unauthorized access and control over the system.
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