Is CVE-2022-21884 in the CISA KEV catalog?

No. CVE-2022-21884 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-21884?

CVE-2022-21884 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2022-21884?

CVE-2022-21884 has an EPSS score of 0.67% (47th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-21884?

Install KB5009601 for Windows Server 2008. Fixes are available for 13 affected products.

CVE & CISA-KEV Catalog

CVE-2022-21884

HIGH

7.8

CVSS v3

NVD

Description

Local Security Authority Subsystem Service Elevation of Privilege Vulnerability

How to fix

Remediation Available

Windows Server 2008Windows

Install:KB5009601Microsoft

Install:KB5009627Microsoft

Windows Server 2008 R2Windows

Install:KB5009610Microsoft

Install:KB5009621Microsoft

Windows Server 2012Windows

Install:KB5009619Microsoft

Install:KB5009586Microsoft

Windows Server 2012 (Server Core installation)Windows

Install:KB5009586Microsoft

Install:KB5009619Microsoft

Windows Server 2012 R2Windows

Install:KB5009624Microsoft

Install:KB5009595Microsoft

Windows Server 2012 R2 (Server Core installation)Windows

Install:KB5009595Microsoft

Install:KB5009624Microsoft

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

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 ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.67%probability of exploitation in 30 days

47thpercentile

Moderate risk: more likely to be exploited than 47% of all known CVEs.

References

Other references2

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Markdown

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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.