CVE-2021-36942

HIGHCVSS 7.5Known Exploited

CISA Known Exploited Vulnerability

https://nvd.nist.gov/vuln/detail/CVE-2021-36942

Remediation deadline: November 17, 2021

Ransomware use: Known

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.

Timeline

Published:August 12th, 2021 6:15 PM

Last modified:August 10th, 2026 8:19 PM

Added to KEV:November 3rd, 2021

CVSS Scoring

CVSS v3: 7.5 (HIGH)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2: 5.0

Affected Software

From NVD CPE configuration data

Vendors

microsoft

Products

windows_server_2004windows_server_2008windows_server_2012windows_server_2016windows_server_2019windows_server_20h2

References & Reports

Advisories, patches, and third-party reports

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36942Patch
https://www.kb.cert.org/vuls/id/405600Exploit
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36942US Government Resource

Source: NIST NVD · Data may lag official sources by up to one minute