How severe is CVE-2022-22047?

CVE-2022-22047 has a CVSS 3.1 base score of 7.8 (HIGH). EPSS estimates a 18.8% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2022-22047: Windows Client Server Run-time Subsystem (CSRSS)

CISA Known Exploited Vulnerabilities

Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-07-12

Remediation due

2022-08-02

Required action
Apply updates per vendor instructions.

CISA notes
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-22047; https://nvd.nist.gov/vuln/detail/CVE-2022-22047

Description

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

Severity

CVSS 3.1 · CNA7.8 HIGH

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

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

References

1 Links

Vendor advisories

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

Record Details

Published

2022-07-12

Last updated

2025-10-21

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.