CVE-2020-1303: Microsoft Windows 10

Medium severity, CVSS 5.5. EPSS: 4.3% chance of exploitation in the next 30 days.

<p>An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context.</p> <p>An attacker could exploit this vulnerability by running a specially crafted application on the victim system.</p> <p>The update addresses the vulnerability by correcting the way the Windows Runtime handles objects in memory.</p>

Affected products

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

Published 2020-09-11. Last modified 2026-06-17.