CVE-2026-83711

Published: Sep 3, 2026Modified: Oct 14, 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.

Affected (1)

Products: Microsoft: Azure Active Directory B2c

Microsoft

1 product

Azure Active Directory B2c

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Microsoft Azure Active Directory B2c	All versions

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

PatchVendor Advisory

Timeline

No history available yet.