CVE-2021-31199

Known Exploited

Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability

Description

Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability

5.2

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.46%

KEV Since

Vendor Advisory microsoft.com

Affected: Microsoft Windows 10 Version 1809

Affected: Microsoft Windows Server 2019

Affected: Microsoft Windows Server 2019 (Server Core installation)

Affected: Microsoft Windows 10 Version 1909

Affected: Microsoft Windows 10 Version 21H1

Affected: Microsoft Windows 10 Version 2004

Affected: Microsoft Windows Server version 2004

Affected: Microsoft Windows 10 Version 20H2

Affected: Microsoft Windows Server version 20H2

Affected: Microsoft Windows 10 Version 1507

Affected: Microsoft Windows 10 Version 1607

Affected: Microsoft Windows Server 2016

Affected: Microsoft Windows Server 2016 (Server Core installation)

Affected: Microsoft Windows 7

Affected: Microsoft Windows 7 Service Pack 1

Affected: Microsoft Windows 8.1

Affected: Microsoft Windows Server 2008 Service Pack 2

Affected: Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)

Affected: Microsoft Windows Server 2008 Service Pack 2

Affected: Microsoft Windows Server 2008 R2 Service Pack 1

Affected: Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)

Affected: Microsoft Windows Server 2012

Affected: Microsoft Windows Server 2012 (Server Core installation)

Affected: Microsoft Windows Server 2012 R2

Affected: Microsoft Windows Server 2012 R2 (Server Core installation)

References

Link	Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31199	patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-31199?: CVE-2021-31199 has been scored as a medium severity vulnerability.
How to fix CVE-2021-31199?: To fix CVE-2021-31199, 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-2021-31199 being actively exploited in the wild?: It is confirmed that CVE-2021-31199 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-31199?: CVE-2021-31199 affects Microsoft Windows 10 Version 1809, Microsoft Windows Server 2019, Microsoft Windows Server 2019 (Server Core installation), Microsoft Windows 10 Version 1909, Microsoft Windows 10 Version 21H1, Microsoft Windows 10 Version 2004, Microsoft Windows Server version 2004, Microsoft Windows 10 Version 20H2, Microsoft Windows Server version 20H2, Microsoft Windows 10 Version 1507, Microsoft Windows 10 Version 1607, Microsoft Windows Server 2016, Microsoft Windows Server 2016 (Server Core installation), Microsoft Windows 7, Microsoft Windows 7 Service Pack 1, Microsoft Windows 8.1, Microsoft Windows Server 2008 Service Pack 2, Microsoft Windows Server 2008 Service Pack 2 (Server Core installation), Microsoft Windows Server 2008 Service Pack 2, Microsoft Windows Server 2008 R2 Service Pack 1, Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation), Microsoft Windows Server 2012, Microsoft Windows Server 2012 (Server Core installation), Microsoft Windows Server 2012 R2, Microsoft Windows Server 2012 R2 (Server Core installation).