CVE-2021-43226—Microsoft Windows Privilege Escalation Vulnerability

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?

Ransomware Status:

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