CVE-2021-33758
published 2021-07-14CVE-2021-33758: Windows Hyper-V Denial of Service Vulnerability Windows Hyper-V Denial of Service Vulnerability
high7.7CVSS 3.1
AVNACLPRLUINSCCNINAH
EPSS
2.87%
86.7th percentile
Windows Hyper-V Denial of Service Vulnerability
Windows Hyper-V Denial of Service Vulnerability
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_version_1607 | >= 10.0.0 < 10.0.14393.4530 | 10.0.14393.4530 |
| microsoft | windows_server_2016 | >= 10.0.0 < 10.0.14393.4530 | 10.0.14393.4530 |
| msrc | windows_10_version_1607_for_x64-based_systems | — | — |
| msrc | windows_server_2016 | — | — |
CVSS provenance
nvdv3.17.7HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
cvelistv57.7HIGH
vendor_msrc7.7HIGH
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VulDB
Microsoft Windows 10 1607/Server 2016 Hyper-V denial of service
vuldb·2026-08-11·CVSS 7.7
CVE-2021-33758 [HIGH] Microsoft Windows 10 1607/Server 2016 Hyper-V denial of service
A vulnerability was found in Microsoft Windows 10 1607/Server 2016. It has been declared as critical. Affected by this issue is some unknown functionality of the component Hyper-V. Such manipulation leads to denial of service.
This vulnerability is referenced as CVE-2021-33758. It is possible to launch the attack remotely. No exploit is available.
Applying a patch is advised to resolve this issue.
GHSA
GHSA-5h3p-vhgq-p526: Windows Hyper-V Denial of Service Vulnerability This CVE ID is unique from CVE-2021-33755
ghsa_unreviewed·2022-05-24·CVSS 6.3
CVE-2021-33758 [MEDIUM] GHSA-5h3p-vhgq-p526: Windows Hyper-V Denial of Service Vulnerability This CVE ID is unique from CVE-2021-33755
Windows Hyper-V Denial of Service Vulnerability This CVE ID is unique from CVE-2021-33755.
GHSA
GHSA-m8cf-5cgm-249r: Windows Hyper-V Denial of Service Vulnerability This CVE ID is unique from CVE-2021-33758
ghsa_unreviewed·2022-05-24·CVSS 7.7
CVE-2021-33755 [HIGH] GHSA-m8cf-5cgm-249r: Windows Hyper-V Denial of Service Vulnerability This CVE ID is unique from CVE-2021-33758
Windows Hyper-V Denial of Service Vulnerability This CVE ID is unique from CVE-2021-33758.
CVEList
Windows Hyper-V Denial of Service Vulnerability
cvelistv5·2021-07-14·CVSS 7.7
CVE-2021-33758 [HIGH] Windows Hyper-V Denial of Service Vulnerability
Windows Hyper-V Denial of Service Vulnerability
Windows Hyper-V Denial of Service Vulnerability
Microsoft
Windows Hyper-V Denial of Service Vulnerability
vendor_msrc·2021-07-13·CVSS 7.7
CVE-2021-33758 [HIGH] Windows Hyper-V Denial of Service Vulnerability
Windows Hyper-V Denial of Service Vulnerability
Role: Windows Hyper-V: Role: Windows Hyper-V
Microsoft: Microsoft
Impact: Denial of Service
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5004238
Reference: https://support.microsoft.com/help/5004238
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-07-14
Published