CVE-2021-26443: Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability
First published: Wed Nov 10 2021(Updated: )
Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| =20h2 | ||
| =21h1 | ||
| =1809 | ||
| =1909 | ||
| =20h2 | ||
| =2004 | ||
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 11 | ||
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2022 |
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Frequently Asked Questions
What is CVE-2021-26443?
CVE-2021-26443 is a Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability.
Which software versions are affected by CVE-2021-26443?
CVE-2021-26443 affects Microsoft Windows 10 versions 20H2, 21H1, 1809, and 1909, as well as Windows 11 and Windows Server 2016, 2004, 2019, and 2022.
What is the severity of CVE-2021-26443?
CVE-2021-26443 has a severity value of 9, indicating a critical vulnerability.
How can I fix CVE-2021-26443?
To fix CVE-2021-26443, apply the necessary security updates provided by Microsoft.
Where can I find more information about CVE-2021-26443?
You can find more information about CVE-2021-26443 on the Microsoft Security Guidance Advisory page: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26443
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