CVE-2021-36942

7.5 HIGH CISA KEV - Actively Exploited
Published: August 12, 2021 Modified: October 30, 2025

Description

Windows LSA Spoofing Vulnerability

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://www.kb.cert.org/vuls/id/405600
Source: secure@microsoft.com
Exploit Third Party Advisory US Government Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36942
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://www.kb.cert.org/vuls/id/405600
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory US Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36942
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
93.6%
100th percentile
Exploitation Status
Actively Exploited
Remediation due: 2021-11-17

Affected Vendors

microsoft