CVE-2021-34525: Windows DNS Server Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 8.8)

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2021-Jul

Released

2021-07-13

EPSS Score

4.86% (percentile: 89.6%)

Affected Products (8)

Windows

• Windows Server 2019
• Windows Server 2019 (Server Core installation)
• Windows Server, version 2004 (Server Core installation)
• Windows Server, version 20H2 (Server Core Installation)
• Windows Server 2016
• Windows Server 2016 (Server Core installation)
• Windows Server 2012 R2
• Windows Server 2012 R2 (Server Core installation)

Security Updates (5)

• 5004244
• 5004237
• 5004238
• 5004298
• 5004285

Acknowledgments

<a href="https://twitter.com/guhe120">Yuki Chen</a>

Revision History

• 2021-07-13: Information published.