CVE-2020-1054—Microsoft Win32k Privilege Escalation Vulnerability

PUBLISHEDvulnerability record
2021-11-03 · last modified June 21, 2025

Metadata

CVE ID:
CVE-2020-1054
Project:
Microsoft
Product:
Win32k
Date Added:
2021-11-03
Due Date:
2022-05-03
Last Updated:
June 21, 2025

Vulnerability Name

Microsoft Win32k Privilege Escalation Vulnerability

Description

Microsoft Win32k contains a privilege escalation vulnerability when the Windows kernel-mode driver fails to properly handle objects in memory. Successful exploitation allows an attacker to execute code in kernel mode.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
Unknown

Action

Apply updates per vendor instructions.

Additional Notes

  • https://nvd.nist.gov/vuln/detail/CVE-2020-1054

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