CVE-2022-24521: Microsoft Windows CLFS Driver Privilege Escalation Vulnerability

CVE-2022-24521: Technical Deep-Dive (Auto Refreshed)

Generated on 2026-03-30T13:34:40.725Z. This file is automatically regenerated every 30 minutes by the CVE AI enrichment job using web sources (NVD, MITRE, CISA KEV, GitHub).

Executive Technical Summary

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Context preserved from previous revision: Windows Common Log File System Driver Elevation of Privilege Vulnerability Notes: Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

Technical Details

CVE: CVE-2022-24521
KEV date added: 2022-04-13
KEV due date: 2022-05-04
NVD published: 2022-04-15
NVD modified: 2025-10-30
MITRE modified: 2025-10-21
CVSS base score: 7.8
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS exploitability score: 1.8
CVSS impact score: 5.9
Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Versions and Products Impacted

microsoft / windows 10 1507 (versions: < 10.0.10240.19265)
microsoft / windows 10 1607 (versions: < 10.0.14393.5066)
microsoft / windows 10 1809 (versions: <= 10.0.17763.2803)
microsoft / windows 10 1909 (versions: < 10.0.18363.2212)
microsoft / windows 10 20h2 (versions: < 10.0.19042.1645)
microsoft / windows 10 21h1 (versions: < 10.0.19043.1645)
microsoft / windows 10 21h2 (versions: < 10.0.19044.1645)
microsoft / windows 11 21h2 (versions: < 10.0.22000.613)
microsoft / windows 7
microsoft / windows 8.1
microsoft / windows rt 8.1
microsoft / windows server 2008
microsoft / windows server 2008 (versions: r2)
microsoft / windows server 2012
microsoft / windows server 2012 (versions: r2)
microsoft / windows server 2016 (versions: < 10.0.14393.5066)
microsoft / windows server 2019 (versions: < 10.0.17763.2803)
microsoft / windows server 2022 (versions: < 10.0.20348.643)
microsoft / windows server 20h2 (versions: < 10.0.19042.1645)
Microsoft / Windows 10 Version 1809 (versions: 10.0.17763.0)

Weakness Classification

NVD-CWE-noinfo
CWE-787

Repositories for Lab Validation (Public Examples)

Ostorlab/KEV | stars: 608 | updated: 2026-03-23 | https://github.com/Ostorlab/KEV
Notes: Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
uname1able/CVE-2022-24521 | stars: 0 | updated: 2026-02-20 | https://github.com/uname1able/CVE-2022-24521
Notes: CVE-2022-24521 poc

People and Organizations Mentioned

microsoft
Windows
Ostorlab
uname1able

Practical Defensive Validation (Authorized Only)

Use only isolated environments and systems you own or are explicitly authorized to test.
Snapshot infrastructure before validation and preserve baseline logs (EDR, SIEM, OS, app).
Create low-privilege users on microsoft / windows 10 1507 (versions: < 10.0.10240.19265) and validate that patching blocks unauthorized admin-level actions.
Compare token/privilege transitions in Windows Event Logs before and after remediation.
Tune detections for unusual group membership changes and SYSTEM-level process launches from user sessions.

References

NVD record: https://nvd.nist.gov/vuln/detail/CVE-2022-24521
MITRE CVE record: https://www.cve.org/CVERecord?id=CVE-2022-24521
CISA KEV Catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
CISA KEV JSON feed: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
KEV notes: https://nvd.nist.gov/vuln/detail/CVE-2022-24521
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-24521
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-24521
Repository example: https://github.com/Ostorlab/KEV
Repository example: https://github.com/uname1able/CVE-2022-24521

This content is for defensive security training and authorized validation only.