<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>
Severity
CVSS 3.1
5.0 medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS
1.4% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)