KEV · Actively exploited

CVE-2021-42278

CVE-2021-42278 is actively exploited (CISA KEV catalog) : high severity (CVSS 7.5), 0 tracked apps concerned, none still exposed on their current version.

Severity (CVSS): 7.5
Exploitation: Confirmed
Tracked apps: 0
Still exposed: 0

Published on 2021-11-10

Active Directory Domain Services Elevation of Privilege Vulnerability

Attack vector : Network No user interaction

Show raw CVSS vector

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

EPSS 73.30% predictive model; CISA confirms active exploitation percentile 99.4%

CISA Known Exploited Vulnerability

Added to KEV: 2022-04-11
Remediation deadline: 2022-05-02
Required action: Apply updates per vendor instructions.
Ransomware: Yes, known ransomware campaign

OS versions that fix this CVE

This CVE is resolved by the following OS security releases. Update the OS to at least the listed version.

Windows Server 2022 Fixed in 10.0.20348.350
Windows Server 2019 Fixed in 10.0.17763.2300
Windows Server 2016 Fixed in 10.0.14393.4770

View on NVD ↗ CISA KEV catalog ↗ Advisory · msrc.microsoft.com Advisory · portal.msrc.microsoft.com

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