Summary
Impact: Denial of Service. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What are the vulnerable configurations of Hyper-V?
Any installation of Hyper-V that exposes one or more virtual switches to guests would be vulnerable.
Security updates
10.0.17763.2300 — https://support.microsoft.com/help/5007206
10.0.18363.1916 — https://support.microsoft.com/help/5007189
10.0.19043.1348 — https://support.microsoft.com/help/5007186
10.0.20348.350 — https://support.microsoft.com/help/5007205
10.0.22000.318 — https://support.microsoft.com/help/5007215
10.0.10240.19119 — https://support.microsoft.com/help/5007207
10.0.14393.4770 — https://support.microsoft.com/help/5007192
6.3.9600.20174 — https://support.microsoft.com/help/5007247
6.3.9600.20174 — https://support.microsoft.com/help/5007255
Vulnerabilities 1
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Medium 6.8
Windows Hyper-V Denial of Service Vulnerability
Windows Hyper-V Denial of Service Vulnerability
Revision history
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#2
Updated FAQ information. This is an informational change only.
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#1
Information published.
References
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CVE-2021-42284 Windows Hyper-V Denial of Service Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42284
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss