CVE-2026-83711: Microsoft Entra

Critical severity, CVSS 10.0. EPSS: 0.8% chance of exploitation in the next 30 days.

Authorization bypass through user-controlled key in Microsoft Azure Active Directory B2C allows an unauthorized attacker to elevate privileges over a network.

Affected products

• Microsoft Entra: affected versions not specified

Published 2026-09-03. Last modified 2026-09-08.