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CVE-2022-22047

7.8
HIGHCVSS v3.1 Base Score
1.20%
LOW RiskEPSS (79th percentile)
KEV

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

Published: 7/12/2022
Modified: 10/30/2025
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability

Vendor / Product:

Microsoft Windows

Required Action:

Apply updates per vendor instructions.

Due Date: 8/2/2022(OVERDUE)
Added to KEV:

7/12/2022

Notes:

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

Vulnerability Summary

CVSS v3 Score

7.8HIGH

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

CVSS v2 Score

7.2

AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Score (Exploitation Probability)

1.20%LOW Exploitation Risk
79th percentile

This vulnerability has a 1.20% probability of being exploited in the next 30 days, ranking higher than 79% of all scored CVEs.

CWE Classification

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Similar SeverityHIGH