High severity7.7NVD Advisory· Published Jan 12, 2021· Updated Jun 17, 2026
CVE-2021-1691
CVE-2021-1691
Description
Windows Hyper-V Denial of Service Vulnerability
Affected products
9cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x64:*range: 10.0.0
cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
2News mentions
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