CVE-2020-1241: Microsoft Windows 10

High severity, CVSS 7.8. EPSS: 3.2% chance of exploitation in the next 30 days.

A security feature bypass vulnerability exists when Windows Kernel fails to properly sanitize certain parameters.To exploit the vulnerability, a locally-authenticated attacker could attempt to run a specially crafted application on a targeted system.The update addresses the vulnerability by correcting how Windows Kernel handles parameter sanitization., aka 'Windows Kernel Security Feature Bypass Vulnerability'.

Affected products

• Microsoft Windows 10: version 1607 only; version 1709 only; version 1803 only; version 1809 only; version 1903 only; version 1909 only; …
• Microsoft Windows Server 2016: affected versions not specified; version 1803 only; version 1903 only; version 1909 only; version 2004 only
• Microsoft Windows Server 2019: affected versions not specified

Published 2020-06-09. Last modified 2026-06-17.