# CVE-2022-22047: Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability

Source: https://junglewise.ai/threats/cve-2022-22047-microsoft-windows-client-server-runtime-subsystem-csrss-privilege  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-07-12. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2022-22047 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-07-12

A privilege escalation vulnerability exists in the Microsoft Windows Client Server Runtime Subsystem (CSRSS) due to an untrusted search path (CWE-426). An authenticated local attacker can exploit this to gain SYSTEM privileges on a target system.

Technologies: [Microsoft Windows](https://junglewise.ai/threats/technologies/windows). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2022-22047 exploited in the wild?** Yes. CVE-2022-22047 is known to be exploited in the wild, first recorded on 12 July 2022. Treat it as urgent.

**How severe is CVE-2022-22047?** Critical severity, with a CVSS score of 7.8, published 12 July 2022.

**Which products and versions are affected?** Microsoft Windows 10 1507, 1607, 1809, 20H2, 21H1, 21H2; Microsoft Windows 11 21H2; Microsoft Windows Server 2022 10.0.20348.825; Microsoft Windows Server 2019 10.0.17763.3165; and 5 more.

**Is there a fix for CVE-2022-22047?** A patch was published on 2022-07-12. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2022-22047 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2022-22047?** Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Microsoft Windows 10 1507, 1607, 1809, 20H2, 21H1, 21H2
- Microsoft Windows 11 21H2
- Microsoft Windows Server 2022 10.0.20348.825
- Microsoft Windows Server 2019 10.0.17763.3165
- Microsoft Windows Server 2016 10.0.14393.5246
- Microsoft Windows 7 SP1
- Microsoft Windows 8.1 -
- Microsoft Windows Server 2008 SP2, R2 SP1
- Microsoft Windows Server 2012 R2

## Timeline

- 2022-07-12: disclosed
- 2022-07-12: patched
- 2022-07-12: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2022-07-12: exploited: Reported as exploited in the wild at time of publication.

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