CVE-2020-1350: Microsoft Windows DNS Server Remote Code Execution Vulnerability

Critical severity, CVSS 10.0. Actively exploited: in CISA KEV since 2021-11-03. EPSS: 96.7% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote Code Execution Vulnerability'.

Affected products

• Microsoft Windows Server 2008: affected versions not specified; version r2 only
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: affected versions not specified
• Microsoft Windows Server 2019: affected versions not specified

Published 2020-07-14. Last modified 2026-06-17.