CVE-2021-36934—Microsoft Windows SAM Local Privilege Escalation Vulnerability

PUBLISHEDvulnerability record
2022-02-10 · last modified June 21, 2025

Metadata

CVE ID:
CVE-2021-36934
Project:
Microsoft
Product:
Windows
Date Added:
2022-02-10
Due Date:
2022-02-24
Last Updated:
June 21, 2025

Vulnerability Name

Microsoft Windows SAM Local Privilege Escalation Vulnerability

Description

If a Volume Shadow Copy (VSS) shadow copy of the system drive is available, users can read the SAM file which would allow any user to escalate privileges to SYSTEM level.

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-2021-36934

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