Is CVE-2022-22026 in the CISA KEV catalog?

No. CVE-2022-22026 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-22026?

CVE-2022-22026 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2022-22026?

CVE-2022-22026 has an EPSS score of 0.98% (58th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-22026?

Install KB5015832 for Windows 10. Fixes are available for 23 affected products.

CVE & CISA-KEV Catalog

CVE-2022-22026

HIGH

8.8

CVSS v3

NVD

Description

Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability

CWE-787Out-of-bounds Write

How to fix

Remediation Available

Windows 10Windows

Install:KB5015832Microsoft

Windows 10 Version 1607Windows

Install:KB5015808Microsoft

Windows 10 Version 1809Windows

Install:KB5015811Microsoft

Windows 10 Version 20H2Windows

Install:KB5015807Microsoft

Windows 10 Version 21H1Windows

Install:KB5015807Microsoft

Windows 10 Version 21H2Windows

Install:KB5015807Microsoft

Windows 11 version 21H2Windows

Install:KB5015814Microsoft

Windows 7Windows

Install:KB5015861Microsoft

Install:KB5015862Microsoft

Windows 8.1Windows

Install:KB5015877Microsoft

Install:KB5015874Microsoft

Windows RT 8.1Windows

Install:KB5015874Microsoft

Windows Server 2008Windows

Install:KB5015866Microsoft

Install:KB5015870Microsoft

Windows Server 2008 R2Windows

Install:KB5015861Microsoft

Install:KB5015862Microsoft

Windows Server 2012Windows

Install:KB5015863Microsoft

Install:KB5015875Microsoft

Windows Server 2012 (Server Core installation)Windows

Install:KB5015875Microsoft

Install:KB5015863Microsoft

Windows Server 2012 R2Windows

Install:KB5015874Microsoft

Install:KB5015877Microsoft

Windows Server 2012 R2 (Server Core installation)Windows

Install:KB5015874Microsoft

Install:KB5015877Microsoft

Windows Server 2016Windows

Install:KB5015808Microsoft

Windows Server 2016 (Server Core installation)Windows

Install:KB5015808Microsoft

Windows Server 2019Windows

Install:KB5015811Microsoft

Windows Server 2019 (Server Core installation)Windows

Install:KB5015811Microsoft

Windows Server 2022Windows

Install:KB5015827Microsoft

Windows Server 2022 (Server Core installation)Windows

Install:KB5015827Microsoft

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

Install:KB5015807Microsoft

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

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.98%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Other references1

msrc.microsoft.com

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

Embed a live status badge for CVE-2022-22026

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.