CVE-2021-40449β€”Microsoft Windows Win32k Privilege Escalation Vulnerability

PUBLISHEDvulnerability record
2021-11-17 Β· last modified June 21, 2025

Metadata

CVE ID:
CVE-2021-40449
Project:
Microsoft
Product:
Windows
Date Added:
2021-11-17
Due Date:
2021-12-01
Last Updated:
June 21, 2025

Vulnerability Name

Microsoft Windows Win32k Privilege Escalation Vulnerability

Description

Unspecified vulnerability allows for an authenticated user to escalate privileges.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
KNOWN

Action

Apply updates per vendor instructions.

Additional Notes

  • https://nvd.nist.gov/vuln/detail/CVE-2021-40449

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