CVE-2026-83711

Published: Sep 3, 2026Modified: Sep 8, 2026

10.0

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Exploitability: 3.9 / Impact: 5.8

Source: secure@microsoft.com (Secondary)

Description

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

Related CWEs

CWE-639

Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83711

Source: secure@microsoft.com

Timeline

No history available yet.