CVE-2020-0837: Microsoft Windows 10

Medium severity, CVSS 5.0. EPSS: 1.4% chance of exploitation in the next 30 days.

<p>An elevation of privilege vulnerability exists when Active Directory Federation Services (ADFS) improperly handles multi-factor authentication requests. An attacker who successfully exploited this vulnerability could bypass some, but not all, of the authentication factors.</p> <p>To exploit this vulnerability, an attacker could send a specially crafted authentication request.</p> <p>This security update corrects how ADFS handles multi-factor authentication requests.</p>

Affected products

• Microsoft Windows 10: version 1607 only; version 1809 only; version 1903 only; version 1909 only; version 2004 only
• Microsoft Windows Server 2016: affected versions not specified; 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.