Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2021-33755
CVE-2021-33755:
vulnerability analysis and mitigation
Overview
A Windows Hyper-V Denial of Service vulnerability identified as CVE-2021-33755 was discovered and disclosed in July 2021. This vulnerability affects various versions of Windows 10 and Windows Server 2019 running Hyper-V services (Rapid7).
Technical details
The vulnerability has been assigned a CVSS severity rating of 5.0 with the vector string AV:N/AC:L/Au:N/C:N/I:N/A:P, indicating a moderate severity level. This vulnerability is distinct from CVE-2021-33758, though they affect the same component (Rapid7).
Impact
When successfully exploited, this vulnerability can result in a denial of service condition in Windows Hyper-V environments, potentially affecting the availability of virtualized resources (Rapid7).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability. The fixes are available through various KB updates including KB5004244 for Windows 10 version 1809 and Windows Server 2019, KB5004245 for Windows 10 version 1909, and KB5004237 for Windows 10 versions 2004, 20H2, and 21H1 (Rapid7).
Additional resources
Source: This report was generated using AI
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