CVE-2020-16908: Microsoft Windows 10

High severity, CVSS 7.8. EPSS: 1% chance of exploitation in the next 30 days.

<p>An elevation of privilege vulnerability exists in Windows Setup in the way it handles directories.</p> <p>A locally authenticated attacker could run arbitrary code with elevated system privileges. After successfully exploiting the vulnerability, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>The security update addresses the vulnerability by ensuring Windows Setup properly handles directories.</p>

Affected products

• Microsoft Windows 10: version 1803 only; version 1809 only; version 1903 only; version 1909 only; version 2004 only

Published 2020-10-16. Last modified 2026-06-17.