---
id: "CVE-2022-37969"
kind: "vulnerability"
aliases: ["CVE-2022-37969"]
title: "Windows Common Log File System Driver Elevation of Privilege Vulnerability"
severity: "high"
cvss: 7.8
epss: 0.28275
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Microsoft Windows", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1507", "fixed": ["10.0.10240.19444"], "affected": "< 10.0.10240.19444", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1607", "fixed": ["10.0.14393.5356"], "affected": "< 10.0.14393.5356", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1809", "fixed": ["10.0.17763.3406"], "affected": "< 10.0.17763.3406", "ecosystem": "vendor"}, {"name": "microsoft windows 10 20h2", "fixed": ["10.0.19042.2006"], "affected": "< 10.0.19042.2006", "ecosystem": "vendor"}, {"name": "microsoft windows 10 21h1", "fixed": ["10.0.19043.2006"], "affected": "< 10.0.19043.2006", "ecosystem": "vendor"}, {"name": "microsoft windows 10 21h2", "fixed": ["10.0.19044.2006"], "affected": "< 10.0.19044.2006", "ecosystem": "vendor"}, {"name": "microsoft windows 11 21h2", "fixed": ["10.0.22000.978"], "affected": "< 10.0.22000.978", "ecosystem": "vendor"}, {"name": "microsoft windows 7", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows 8.1", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows rt 8.1", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows server 2008", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows server 2008", "fixed": [], "affected": "= r2", "ecosystem": "vendor"}, {"name": "microsoft windows server 2012", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows server 2012", "fixed": [], "affected": "= r2", "ecosystem": "vendor"}, {"name": "microsoft windows server 2016", "fixed": ["10.0.14393.5356"], "affected": "< 10.0.14393.5356", "ecosystem": "vendor"}, {"name": "microsoft windows server 2019", "fixed": ["10.0.17763.3406"], "affected": "< 10.0.17763.3406", "ecosystem": "vendor"}, {"name": "microsoft windows server 2022", "fixed": ["10.0.20348.1006"], "affected": "< 10.0.20348.1006", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "infrastructure", "ransomware", "self-hosted", "windows"]
not_affected_if: ["patched-windows"]
published_at: "2022-09-13T19:15:12+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T22:29:04+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-37969", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2022-37969", "first_seen_at": "2026-10-23T19:13:45+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-37969", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# Windows Common Log File System Driver Elevation of Privilege Vulnerability

A flaw in the Windows Common Log File System (CLFS) driver lets a local user raise their privileges. An attacker who already has a foothold on the machine can gain SYSTEM-level control.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Microsoft Windows affected ? fixed ?
- vendor:microsoft windows 10 1507 affected < 10.0.10240.19444 fixed 10.0.10240.19444
- vendor:microsoft windows 10 1607 affected < 10.0.14393.5356 fixed 10.0.14393.5356
- vendor:microsoft windows 10 1809 affected < 10.0.17763.3406 fixed 10.0.17763.3406
- vendor:microsoft windows 10 20h2 affected < 10.0.19042.2006 fixed 10.0.19042.2006
- vendor:microsoft windows 10 21h1 affected < 10.0.19043.2006 fixed 10.0.19043.2006
- vendor:microsoft windows 10 21h2 affected < 10.0.19044.2006 fixed 10.0.19044.2006
- vendor:microsoft windows 11 21h2 affected < 10.0.22000.978 fixed 10.0.22000.978
- vendor:microsoft windows 7 affected ? fixed ?
- vendor:microsoft windows 8.1 affected ? fixed ?
- vendor:microsoft windows rt 8.1 affected ? fixed ?
- vendor:microsoft windows server 2008 affected ? fixed ?
- vendor:microsoft windows server 2008 affected = r2 fixed ?
- vendor:microsoft windows server 2012 affected ? fixed ?
- vendor:microsoft windows server 2012 affected = r2 fixed ?
- vendor:microsoft windows server 2016 affected < 10.0.14393.5356 fixed 10.0.14393.5356
- vendor:microsoft windows server 2019 affected < 10.0.17763.3406 fixed 10.0.17763.3406
- vendor:microsoft windows server 2022 affected < 10.0.20348.1006 fixed 10.0.20348.1006

## Fix

Apply the Microsoft security update for CVE-2022-37969 per vendor instructions (CISA required action); the specific KB and patched build are not in the sources.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-37969
- 2026-10-23T19:13:45+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2022-37969
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2022-37969

## From the sources

Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.

CISA required action: Apply updates per vendor instructions.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_