Live › vulnerability › CVE-2021-36942
Go to dashboardA spoofing flaw in the Windows Local Security Authority lets an unauthenticated attacker call a method on the LSARPC interface and force a domain controller to authenticate to another server over NTLM. The attacker can capture or relay that NTLM authentication and impersonate the domain controller's machine account.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Microsoft Windows | vendor | – | – |
Unknown from the sources. In the analyst’s queue.
Apply the Microsoft update for CVE-2021-36942 per vendor instructions (CISA KEV required action).
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
CISA required action: Apply updates per vendor instructions.
This page as .md · .json · in your agent: get_signal("CVE-2021-36942")
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