CVE & CISA-KEV Catalog

CVE-2022-21881

HIGHEPSS 98th pctl
7.0
CVSS v3
NVD

Description

Windows Kernel Elevation of Privilege Vulnerability

How to fix

Remediation Available
Windows 10Windows
Install:KB5009585Microsoft
Windows 10 Version 1607Windows
Install:KB5009546Microsoft
Windows 10 Version 1809Windows
Install:KB5009557Microsoft
Windows 10 Version 1909Windows
Install:KB5009545Microsoft
Windows 10 Version 20H2Windows
Install:KB5009543Microsoft
Windows 10 Version 21H1Windows
Install:KB5009543Microsoft
Windows 10 Version 21H2Windows
Install:KB5009543Microsoft
Windows 11 version 21H2Windows
Install:KB5009566Microsoft
Windows 8.1Windows
Install:KB5009595Microsoft
Install:KB5009624Microsoft
Windows RT 8.1Windows
Install:KB5009624
Windows Server 2012 R2Windows
Install:KB5009624Microsoft
Install:KB5009595Microsoft
Windows Server 2012 R2 (Server Core installation)Windows
Install:KB5009624Microsoft
Install:KB5009595Microsoft
Windows Server 2016Windows
Install:KB5009546Microsoft
Windows Server 2016 (Server Core installation)Windows
Install:KB5009546Microsoft
Windows Server 2019Windows
Install:KB5009557Microsoft
Windows Server 2019 (Server Core installation)Windows
Install:KB5009557Microsoft
Windows Server 2022Windows
Install:KB5009555Microsoft
Windows Server 2022 (Server Core installation)Windows
Install:KB5009555Microsoft
Windows Server, version 20H2 (Server Core Installation)Windows
Install:KB5009543Microsoft

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 VectorLocal
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

25.02%probability of exploitation in 30 days
98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Related Vulnerabilities

Other CWE-362 (Race Condition) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-6387High8.1100%-Fix
CVE-2023-36884High7.599%KEV + RansomFix
CVE-2018-15473Medium5.399%-Fix
CVE-2024-27983High8.287%-Fix
CVE-2014-0226Medium6.886%-Fix
CVE-2016-5195High7.084%KEVFix

Common questions

How do I fix CVE-2022-21881?

Published advisories record a fix for 19 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2022-21881 being actively exploited?

Not that we know of. CVE-2022-21881 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 25.0% is the estimated probability that it will be exploited in the next 30 days. That is higher than 98% of all scored CVEs.

How severe is CVE-2022-21881?

CVE-2022-21881 has a CVSS v3 base score of 7.0, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-21881 affect?

Published advisories record a fix for Windows 10 (Windows), Windows 10 Version 1607 (Windows), Windows 10 Version 1809 (Windows), Windows 10 Version 1909 (Windows), and 15 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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CVE-2022-21881 severity badge

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.