CVE-2021-43226 - Microsoft Windows Privilege Escalation Vulnerability
Project:Microsoft
Product:Windows
Date Added:2025-10-06Due Date:2025-10-27
Vulnerability Name
Microsoft Windows Privilege Escalation Vulnerability
Description
Microsoft Windows Common Log File System Driver contains a privilege escalation vulnerability that could allow a local, privileged attacker to bypass certain security mechanisms.
Known To Be Used in Ransomware Campaigns?
Unknown
Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Additional Notes
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-43226
https://nvd.nist.gov/vuln/detail/CVE-2021-43226