CVE-2021-42274: Windows Hyper-V Discrete Device Assignment (DDA) Denial of Service Vulnerability
First published: Wed Nov 10 2021(Updated: )
Windows Hyper-V Discrete Device Assignment (DDA) Denial of Service Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| =20h2 | ||
| =21h1 | ||
| =1607 | ||
| =1809 | ||
| =2004 | ||
| =20h2 | ||
| =2004 | ||
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 11 | ||
| Microsoft Windows Server 2016 | ||
| 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-2021-42274?
CVE-2021-42274 is a vulnerability in Windows Hyper-V Discrete Device Assignment (DDA) that allows for denial of service.
Which software versions are affected by CVE-2021-42274?
CVE-2021-42274 affects Microsoft Windows 10 versions 20H2, 21H1, 1607, 1809, and 2004, as well as Windows 11, Windows Server 2016 versions 20H2 and 2004, Windows Server 2019, and Windows Server 2022.
What is the severity of CVE-2021-42274?
CVE-2021-42274 has a severity rating of 6.5 (Medium).
How can I mitigate CVE-2021-42274?
It is recommended to apply the latest security updates provided by Microsoft to mitigate the CVE-2021-42274 vulnerability.
Where can I find more information about CVE-2021-42274?
You can find more information about CVE-2021-42274 on the official Microsoft Security Guidance Advisory page: [link](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42274)
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- canonical/microsoft windows server 2019
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