CVE-2021-36942

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Summary

CVECVE-2021-36942
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-12 18:15:00 UTC
Updated2023-12-28 20:15:00 UTC
DescriptionWindows LSA Spoofing Vulnerability

Risk And Classification

EPSS: 0.655430000 probability, percentile 0.991840000 (date 2026-07-22)

CISA KEV: Listed on 2021-11-03; due 2021-11-17; ransomware use Known

Problem Types: NVD-CWE-Other

CISA Known Exploited Vulnerability

VendorMicrosoft
ProductWindows
NameMicrosoft Windows Local Security Authority (LSA) Spoofing Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://nvd.nist.gov/vuln/detail/CVE-2021-36942

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Microsoft Windows Server 2008 - sp2 All All
Operating System Microsoft Windows Server 2008 r2 sp1 All All
Operating System Microsoft Windows Server 2012 - All All All
Operating System Microsoft Windows Server 2012 r2 All All All
Operating System Microsoft Windows Server 2016 - All All All
Operating System Microsoft Windows Server 2016 2004 All All All
Operating System Microsoft Windows Server 2016 20h2 All All All
Operating System Microsoft Windows Server 2019 - All All All

References

ReferenceSourceLinkTags
VU#405600 - Microsoft Windows Active Directory Certificate Services can allow for AD compromise via PetitPotam NTLM relay attacks CERT-VN www.kb.cert.org
Security Update Guide - Microsoft Security Response Center N/A portal.msrc.microsoft.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Legacy QID Mappings

  • 91803 Microsoft Windows Local Security Authority (LSA) Spoofing Vulnerability August 2021
  • 91813 Microsoft Azure Stack Hub Security Updates - August 2021

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