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CVE-2021-42278

Active Directory Domain Services Elevation of Privilege Vulnerability

Published
Last modified
published
Listed in CISA KEV
Fix
Fixed in 6.1.7601.25769, 6.0.6003.21282, 6.2.9200.23517, 6.3.9600.20174, 10.0.14393.4770, and 4 more
None on Exploit-DB, Metasploit or GitHub

Summary

Microsoft Windows Active Directory Domain Services, the directory service used to manage users and resources on Windows Server, is affected by this vulnerability. An attacker who can run code or gain a foothold on the system could exploit it to gain elevated privileges, such as those of an administrator.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

Active Directory Domain Services Elevation of Privilege Vulnerability

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • Microsoft Windows Server 2008 R2 Service Pack 1

    From 6.1.7601.0 · fixed in 6.1.7601.25769

  • Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)

    From 6.1.7601.0 · fixed in 6.1.7601.25769

  • Microsoft Windows Server 2008 Service Pack 2

    From 6.0.6003.0 · fixed in 6.0.6003.21282

  • Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)

    From 6.0.6003.0 · fixed in 6.0.6003.21282

  • Microsoft Windows Server 2012

    From 6.2.9200.0 · fixed in 6.2.9200.23517

  • Microsoft Windows Server 2012 (Server Core installation)

    From 6.2.9200.0 · fixed in 6.2.9200.23517

  • Microsoft Windows Server 2012 R2

    From 6.3.9600.0 · fixed in 6.3.9600.20174

  • Microsoft Windows Server 2012 R2 (Server Core installation)

    From 6.3.9600.0 · fixed in 6.3.9600.20174

  • Microsoft Windows Server 2016

    From 10.0.14393.0 · fixed in 10.0.14393.4770

  • Microsoft Windows Server 2016 (Server Core installation)

    From 10.0.14393.0 · fixed in 10.0.14393.4770

  • Microsoft Windows Server 2019

    From 10.0.17763.0 · fixed in 10.0.17763.2300

  • Microsoft Windows Server 2019 (Server Core installation)

    From 10.0.17763.0 · fixed in 10.0.17763.2300

  • Microsoft Windows Server 2022

    From 10.0.20348.0 · fixed in 10.0.20348.350

  • Microsoft Windows Server version 2004

    From 10.0.0 · fixed in 10.0.19041.1348

  • Microsoft Windows Server version 20H2

    From 10.0.0 · fixed in 10.0.19042.1348

References 1

msrc.microsoft.com