Is CVE-2021-31186 in the CISA KEV catalog?

No. CVE-2021-31186 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-31186?

CVE-2021-31186 has a CVSS v3 base score of 7.4 (HIGH).

What is the EPSS score for CVE-2021-31186?

CVE-2021-31186 has an EPSS score of 2.97% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-31186?

Install KB5003172 for Windows 10. Fixes are available for 23 affected products.

CVE & CISA-KEV Catalog

CVE-2021-31186

HIGHEPSS 86th pctl

7.4

CVSS v3

NVD

Description

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability

How to fix

Remediation Available

Windows 10Windows

Install:KB5003172Microsoft

Windows 10 Version 1607Windows

Install:KB5003197Microsoft

Windows 10 Version 1803Windows

Install:KB5003174Microsoft

Windows 10 Version 1809Windows

Install:KB5003171Microsoft

Windows 10 Version 1909Windows

Install:KB5003169Microsoft

Windows 10 Version 2004Windows

Install:KB5003173Microsoft

Windows 10 Version 20H2Windows

Install:KB5003173Microsoft

Windows 7Windows

Install:KB5003228Microsoft

Install:KB5003233Microsoft

Windows 8.1Windows

Install:KB5003209Microsoft

Install:KB5003220Microsoft

Windows RT 8.1Windows

Install:KB5003209

Windows Server 2008Windows

Install:KB5003225Microsoft

Install:KB5003210Microsoft

Windows Server 2008 R2Windows

Install:KB5003228Microsoft

Install:KB5003233Microsoft

Windows Server 2012Windows

Install:KB5003203Microsoft

Install:KB5003208Microsoft

Windows Server 2012 (Server Core installation)Windows

Install:KB5003208Microsoft

Install:KB5003203Microsoft

Windows Server 2012 R2Windows

Install:KB5003220Microsoft

Install:KB5003209Microsoft

Windows Server 2012 R2 (Server Core installation)Windows

Install:KB5003220Microsoft

Install:KB5003209Microsoft

Windows Server 2016Windows

Install:KB5003197Microsoft

Windows Server 2016 (Server Core installation)Windows

Install:KB5003197Microsoft

Windows Server 2019Windows

Install:KB5003171Microsoft

Windows Server 2019 (Server Core installation)Windows

Install:KB5003171Microsoft

Windows Server, version 1909 (Server Core installation)Windows

Install:KB5003169Microsoft

Windows Server, version 2004 (Server Core installation)Windows

Install:KB5003173Microsoft

Windows Server, version 20H2 (Server Core Installation)Windows

Install:KB5003173Microsoft

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Exploit Intelligence

2.97%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Patch1

portal.msrc.microsoft.com

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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.