What is CVE-2026-83711?

CVE-2026-83711 is a security advisory published by Microsoft Security Response Center (MSRC) with Critical severity. Microsoft Azure Active Directory B2C Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2026-83711 cover?

CVE-2026-83711 covers the following CVE IDs: CVE-2026-83711. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-83711?

CVE-2026-83711 has a CVSS v3 base score of 10.0, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-83711?

CVE-2026-83711 affects 1 product, including: Microsoft Azure Active Directory B2C.

CVE-2026-83711CriticalCVSS 10.0

Microsoft Azure Active Directory B2C Elevation of Privilege Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

September 11, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-83711 →

📋 Description

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

🎯 Affected products1

Microsoft Azure Active Directory B2C

🔗 References (1)

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