CVE-2021-42274: Windows Hyper-V Discrete Device Assignment (DDA) Denial of Service Vulnerability
Windows Hyper-V Discrete Device Assignment (DDA) Denial of Service Vulnerability
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.2300Patch KB5007206 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.4770Patch KB5007192 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19041.1348Patch KB5007186 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.350Patch KB5007205 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22000.318Patch KB5007215 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19043.1348Patch KB5007186
Event History
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)