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CVE-2021-43226Windows Common Log File System Driver Elevation of Privilege Vulnerability

Windows Common Log File System Driver Elevation of Privilege Vulnerability

7.8 HIGHEPSS 3.27%⚡ Known Exploited (CISA KEV)NVD: Analyzed

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
7.8HIGH3.1microsoft (CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8HIGH3.1microsoft (CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
4.6MEDIUM2.0NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

CISA required action

⚡ Known exploited · remediation due Oct 27, 2025

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Details

CVE ID
CVE-2021-43226
Status
Analyzed
Assigner (CNA)
microsoft
Published
Dec 15, 2021
Last modified
2026-08-22 04:16 UTC

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 11:18 UTC.