CVE-2022-21921

Windows Defender Credential Guard Security Feature Bypass Vulnerability

Description

Windows Defender Credential Guard Security Feature Bypass Vulnerability

4.4

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 1.76% Top 20%

Vendor Advisory microsoft.com

Affected: Microsoft Windows 10 Version 21H1

Affected: Microsoft Windows Server 2022

Affected: Microsoft Windows 10 Version 20H2

Affected: Microsoft Windows Server version 20H2

Affected: Microsoft Windows 11 version 21H2

Affected: Microsoft Windows 10 Version 21H2

References

Link	Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21921	vendor advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21921

Frequently Asked Questions

What is the severity of CVE-2022-21921?: CVE-2022-21921 has been scored as a medium severity vulnerability.
How to fix CVE-2022-21921?: To fix CVE-2022-21921, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-21921 being actively exploited in the wild?: It is possible that CVE-2022-21921 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21921?: CVE-2022-21921 affects Microsoft Windows 10 Version 21H1, Microsoft Windows Server 2022, Microsoft Windows 10 Version 20H2, Microsoft Windows Server version 20H2, Microsoft Windows 11 version 21H2, Microsoft Windows 10 Version 21H2.

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