CVE-2021-42287

Published: Nov 10, 2021Modified: Oct 30, 2025CISA KEV

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD (Secondary)

Description

Active Directory Domain Services Elevation of Privilege Vulnerability

Affected (8)

Products: Microsoft: Windows Server 2008, Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2022

5 products

Windows Server 2008

Windows Server 2012

Windows Server 2016

Windows Server 2019

Windows Server 2022

Configuration A

8 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows Server 2008	All versions
Microsoft Windows Server 2008	Version r2 sp1
Microsoft Windows Server 2012	All versions
Microsoft Windows Server 2012	Version r2
Microsoft Windows Server 2016	Before 10.0.14393.4770
Microsoft Windows Server 2016	Version 2004
Microsoft Windows Server 2019	Before 10.0.17763.2300
Microsoft Windows Server 2022	Before 10.0.20348.350

References (3)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42287

Source: secure@microsoft.com

PatchVendor Advisory

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42287

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-42287

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

Timeline

No history available yet.