CVEs / CVE-2022-22047
CVE-2022-22047: Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability
- Known exploited in the CISA KEV catalog since 12 Jul 2022
- high 7.2 CVSS 2.0 (NVD)
- EPSS 18.7% chance of exploitation in the next 30 days, higher than 97% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Microsoft Windows CSRSS contains an unspecified vulnerability that allows for privilege escalation to SYSTEM privileges.
Description
Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 10 Version 1809 | from 10.0.17763.0, before 10.0.17763.3165 | 10.0.17763.3165 |
| Microsoft Windows 10 Version 1809 | from 10.0.0, before 10.0.17763.3165 | 10.0.17763.3165 |
| Microsoft Windows Server 2019 | from 10.0.17763.0, before 10.0.17763.3165 | 10.0.17763.3165 |
| Microsoft Windows Server 2019 (Server Core installation) | from 10.0.17763.0, before 10.0.17763.3165 | 10.0.17763.3165 |
| Microsoft Windows 10 Version 21H1 | from 10.0.0, before 10.0.19043.1826 | 10.0.19043.1826 |
| Microsoft Windows Server 2022 | from 10.0.20348.0, before 10.0.20348.825 | 10.0.20348.825 |
| Microsoft Windows 10 Version 20H2 | from 10.0.0, before 10.0.19042.1826 | 10.0.19042.1826 |
| Microsoft Windows Server version 20H2 | from 10.0.0, before 10.0.19042.1826 | 10.0.19042.1826 |
| Microsoft Windows 11 version 21H2 | from 10.0.0, before 10.0.22000.795 | 10.0.22000.795 |
| Microsoft Windows 10 Version 21H2 | from 10.0.19043.0, before 10.0.19044.1826 | 10.0.19044.1826 |
| Microsoft Windows 10 Version 1507 | from 10.0.10240.0, before 10.0.10240.19360 | 10.0.10240.19360 |
| Microsoft Windows 10 Version 1607 | from 10.0.14393.0, before 10.0.14393.5246 | 10.0.14393.5246 |
| Microsoft Windows Server 2016 | from 10.0.14393.0, before 10.0.14393.5246 | 10.0.14393.5246 |
| Microsoft Windows Server 2016 (Server Core installation) | from 10.0.14393.0, before 10.0.14393.5246 | 10.0.14393.5246 |
| Microsoft Windows 7 | from 6.1.0, before 6.1.7601.26022 | 6.1.7601.26022 |
| Microsoft Windows 7 Service Pack 1 | from 6.1.0, before 6.1.7601.26022 | 6.1.7601.26022 |
| Microsoft Windows 8.1 | from 6.3.0, before 6.3.9600.20478 | 6.3.9600.20478 |
| Microsoft Windows Server 2008 Service Pack 2 | from 6.0.6003.0, before 6.0.6003.21569 | 6.0.6003.21569 |
| Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) | from 6.0.6003.0, before 6.0.6003.21569 | 6.0.6003.21569 |
| Microsoft Windows Server 2008 Service Pack 2 | from 6.0.6003.0, before 6.0.6003.21569 | 6.0.6003.21569 |
| Microsoft Windows Server 2008 R2 Service Pack 1 | from 6.1.7601.0, before 6.1.7601.26022 | 6.1.7601.26022 |
| Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) | from 6.1.7601.0, before 6.1.7601.26022 | 6.1.7601.26022 |
| Microsoft Windows Server 2012 | from 6.2.9200.0, before 6.2.9200.23771 | 6.2.9200.23771 |
| Microsoft Windows Server 2012 (Server Core installation) | from 6.2.9200.0, before 6.2.9200.23771 | 6.2.9200.23771 |
| Microsoft Windows Server 2012 R2 | from 6.3.9600.0, before 6.3.9600.20478 | 6.3.9600.20478 |
| Microsoft Windows Server 2012 R2 (Server Core installation) | from 6.3.9600.0, before 6.3.9600.20478 | 6.3.9600.20478 |
Exploitation
| In CISA KEV since | 12 Jul 2022 |
|---|---|
| Due date for US federal agencies | 2 Aug 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 2.0 | 7.2 highAV:L/AC:L/Au:N/C:C/I:C/A:CScored by NVD |
|---|---|
| Weakness | CWE-426 |
References
- CVE-2022-22047 on NVD
- CVE-2022-22047 in the CISA KEV catalog
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-22047 (cited by CISA)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-22047 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-22047 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.