CVE-2021-43226

HIGH KEV RANSOMWARE

Windows Common Log File System Driver - Privilege Escalation

Title source: llm

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Exploits (1)

nomisec WORKING POC 2 stars
by Rosayxy · local
https://github.com/Rosayxy/cve-2021-43226PoC

References (2)

Scores

CVSS v3 7.8
EPSS 0.0839
EPSS Percentile 92.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CISA KEV 2025-10-06
VulnCheck KEV 2022-06-13
InTheWild.io 2022-06-13
ENISA EUVD EUVD-2021-30170
Ransomware Use Confirmed
Status published
Products (21)
microsoft/windows_10_1507 < 10.0.10240.19145 (2 CPE variants)
microsoft/windows_10_1607 < 10.0.14393.4825 (2 CPE variants)
microsoft/windows_10_1809 < 10.0.17763.2366
microsoft/windows_10_1909 < 10.0.18363.1977
microsoft/windows_10_2004 < 10.0.19041.1415
microsoft/windows_10_20h2 < 10.0.19042.1415 (2 CPE variants)
microsoft/windows_10_21h1 < 10.0.19043.1415
microsoft/windows_10_21h2 < 10.0.19044.1415
microsoft/windows_11_21h2 < 10.0.22000.376
microsoft/windows_7
... and 11 more
Published Dec 15, 2021
KEV Added Oct 06, 2025
Tracked Since Feb 18, 2026