CVE-2021-36942β€”Microsoft Windows Local Security Authority (LSA) Spoofing Vulnerability

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

Metadata

CVE ID:
CVE-2021-36942
Project:
Microsoft
Product:
Windows
Date Added:
2021-11-03
Due Date:
2021-11-17
Last Updated:
June 21, 2025

Vulnerability Name

Microsoft Windows Local Security Authority (LSA) Spoofing Vulnerability

Description

Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability allowing an unauthenticated attacker to call a method on the LSARPC interface and coerce the domain controller to authenticate against another server using NTLM.

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-2021-36942

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