HIGH 7.7 Microsoft

CVE-2021-33758

Windows Hyper-V Denial of Service Vulnerability

Microsoft Security Update 2021-Jul: Windows Hyper-V Denial of Service Vulnerability

Affected Products

Windows 10 Version 1607 for x64-based Systems
Windows Server 2016
Windows Server 2016 (Server Core installation)

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33758
https://nvd.nist.gov/vuln/detail/CVE-2021-33758

Published: 2021-07-13 · Source: Microsoft · Feed updated: 2026-08-10

This high severity vulnerability with a CVSS score of 7.7 was published on 2021-07-13 via Microsoft. Affected: Windows 10 Version 1607 for x64-based Systems, Windows Server 2016, Windows Server 2016 (Server Core installation).

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