CVE-2022-22047

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

CVSS 3.1 High 7.8Known exploited (CISA KEV)

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

Description

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

Key data

CVSS 3.1 High 7.8

Score published by microsoft in the CVE record.

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

Attack vector: Local
The attacker needs local access to the system, or to trick a user into running something.
Attack complexity: Low
No special conditions are needed. The attack can be repeated at will.
Privileges required: Low
A basic user account is needed.
User interaction: None
No action from any user is needed.
Scope: Unchanged
The impact stays within the vulnerable component.
Confidentiality impact: High
Serious or total effect on the secrecy of data.
Integrity impact: High
Serious or total effect on the trustworthiness of data.
Availability impact: High
Serious or total effect on availability.

Metric	Value	What it means
Attack vector	Local	The attacker needs local access to the system, or to trick a user into running something.
Attack complexity	Low	No special conditions are needed. The attack can be repeated at will.
Privileges required	Low	A basic user account is needed.
User interaction	None	No action from any user is needed.
Scope	Unchanged	The impact stays within the vulnerable component.
Confidentiality impact	High	Serious or total effect on the secrecy of data.
Integrity impact	High	Serious or total effect on the trustworthiness of data.
Availability impact	High	Serious or total effect on availability.

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at first.org/cvss.

EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score: 0.18264 (18.3% probability)
Percentile: 97.2%
Scores of: Nov 10, 2026
Model: v2026.06.15

CISA Known Exploited Vulnerabilities

This CVE is listed in the CISA KEV catalog.

Name in the catalog: Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability
Added to the catalog: Jul 12, 2022
Federal due date: Aug 2, 2022

CISA assessment as of Jul 16, 2024

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation: Recorded by CISA as active
Automatable: no
Technical impact: total

Weakness (CWE)

CWE catalog version 5.0.

CWE-426Untrusted Search Path

Affected products

Products listed in the CVE record, as the CNA published them.

Microsoft Windows 10 Version 1809
- affected: 10.0.17763.0 up to before 10.0.17763.3165
Microsoft Windows 10 Version 1809
- affected: 10.0.0 up to before 10.0.17763.3165
Microsoft Windows Server 2019
- affected: 10.0.17763.0 up to before 10.0.17763.3165
Microsoft Windows Server 2019 (Server Core installation)
- affected: 10.0.17763.0 up to before 10.0.17763.3165
Microsoft Windows 10 Version 21H1
- affected: 10.0.0 up to before 10.0.19043.1826
Microsoft Windows Server 2022
- affected: 10.0.20348.0 up to before 10.0.20348.825
Microsoft Windows 10 Version 20H2
- affected: 10.0.0 up to before 10.0.19042.1826
Microsoft Windows Server version 20H2
- affected: 10.0.0 up to before 10.0.19042.1826
Microsoft Windows 11 version 21H2
- affected: 10.0.0 up to before 10.0.22000.795
Microsoft Windows 10 Version 21H2
- affected: 10.0.19043.0 up to before 10.0.19044.1826
Microsoft Windows 10 Version 1507
- affected: 10.0.10240.0 up to before 10.0.10240.19360
Microsoft Windows 10 Version 1607
- affected: 10.0.14393.0 up to before 10.0.14393.5246
Microsoft Windows Server 2016
- affected: 10.0.14393.0 up to before 10.0.14393.5246
Microsoft Windows Server 2016 (Server Core installation)
- affected: 10.0.14393.0 up to before 10.0.14393.5246
Microsoft Windows 7
- affected: 6.1.0 up to before 6.1.7601.26022
Microsoft Windows 7 Service Pack 1
- affected: 6.1.0 up to before 6.1.7601.26022
Microsoft Windows 8.1
- affected: 6.3.0 up to before 6.3.9600.20478
Microsoft Windows Server 2008 Service Pack 2
- affected: 6.0.6003.0 up to before 6.0.6003.21569
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)
- affected: 6.0.6003.0 up to before 6.0.6003.21569
Microsoft Windows Server 2008 Service Pack 2
- affected: 6.0.6003.0 up to before 6.0.6003.21569
Microsoft Windows Server 2008 R2 Service Pack 1
- affected: 6.1.7601.0 up to before 6.1.7601.26022
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- affected: 6.1.7601.0 up to before 6.1.7601.26022
Microsoft Windows Server 2012
- affected: 6.2.9200.0 up to before 6.2.9200.23771
Microsoft Windows Server 2012 (Server Core installation)
- affected: 6.2.9200.0 up to before 6.2.9200.23771
Microsoft Windows Server 2012 R2
- affected: 6.3.9600.0 up to before 6.3.9600.20478
Microsoft Windows Server 2012 R2 (Server Core installation)
- affected: 6.3.9600.0 up to before 6.3.9600.20478

References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability (msrc.microsoft.com)vendor-advisory

Timeline

ID reservedDec 16, 2021
Added to CISA KEVJul 12, 2022
Record publishedJul 12, 2022
Record last updatedOct 21, 2025

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:27 UTC. Sources and licenses