CVE-2022-37969: Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability

CVE-2022-37969 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-09-14

An out-of-bounds write vulnerability in the Microsoft Windows Common Log File System (CLFS) driver allows a local attacker to gain SYSTEM privileges. The flaw exists in how the driver handles objects in memory, leading to an elevation of privilege.

Technologies: Microsoft Windows. Vendors: Microsoft.

Quick answers

Is CVE-2022-37969 exploited in the wild?
Yes. CVE-2022-37969 is known to be exploited in the wild, first recorded on 14 September 2022. Treat it as urgent.
How severe is CVE-2022-37969?
Critical severity, with a CVSS score of 7.8, published 14 September 2022.
Which products and versions are affected?
Microsoft Windows 10 versions up to (excluding) 10.0.10240.19444; Microsoft Windows 11 versions up to (excluding) 10.0.22000.978; Microsoft Windows Server 2022 versions up to (excluding) 10.0.20348.1006; Microsoft Windows 7 SP1; and 5 more.
Is there a fix for CVE-2022-37969?
A patch was published on 2022-09-14T00:00:00+00:00: Microsoft released security updates to address this vulnerability. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2022-37969 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2022-37969?
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 versions up to (excluding) 10.0.10240.19444
  • Microsoft Windows 11 versions up to (excluding) 10.0.22000.978
  • Microsoft Windows Server 2022 versions up to (excluding) 10.0.20348.1006
  • Microsoft Windows 7 SP1
  • Microsoft Windows 8.1
  • Microsoft Windows Server 2008 SP2, R2 SP1
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2019

Timeline

  • 2022-09-14: disclosed
  • 2022-09-14: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2022-09-14: patched: Microsoft released security updates to address this vulnerability.

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