CVE-2021-31979: Windows Kernel Elevation of Privilege Vulnerability
First published: Wed Jul 14 2021(Updated: )
Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows | ||
| 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 | |
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT 8.1 | ||
| Microsoft Windows Server 2008 | =sp2 | |
| Microsoft Windows Server 2008 | =r2-sp1 | |
| Microsoft Windows Server 2012 | ||
| Microsoft Windows Server 2012 | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows 10 1507 | <10.0.10240.19003 | |
| Microsoft Windows 10 1607 | <10.0.14393.4530 | |
| Microsoft Windows 10 1809 | <10.0.17763.2061 | |
| Microsoft Windows 10 1909 | <10.0.18363.1679 | |
| Microsoft Windows 10 2004 | <10.0.19041.1110 | |
| Microsoft Windows 10 20h2 | <10.0.19042.1110 | |
| Microsoft Windows 10 21h1 | <10.0.19043.1110 | |
| Microsoft Windows Server 2004 | <10.0.19041.1110 | |
| Microsoft Windows Server 2016 | <10.0.14393.4530 | |
| Microsoft Windows Server 2019 | <10.0.17763.2061 | |
| Microsoft Windows Server 20h2 | <10.0.19042.1110 |
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Frequently Asked Questions
What is CVE-2021-31979?
CVE-2021-31979 is a Windows Kernel Privilege Escalation Vulnerability.
How severe is CVE-2021-31979?
CVE-2021-31979 has a severity rating of 7.8 (high).
Which software is affected by CVE-2021-31979?
Microsoft Windows 10 (versions 20H2, 21H1, 1607, 1809, 1909, 2004), Windows 7 SP1, Windows 8.1, Windows RT 8.1, Windows Server 2008 (SP2), Windows Server 2008 R2 SP1, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016 (versions 20H2, 2004), and Windows Server 2019 are affected by CVE-2021-31979.
How do I fix the CVE-2021-31979 vulnerability?
To fix the CVE-2021-31979 vulnerability, Microsoft has provided a security update, which should be installed on the affected systems.
Where can I find more information about CVE-2021-31979?
More information about CVE-2021-31979 can be found on the Microsoft Security Advisory page: [link](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31979).
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