CVE-2026-33843

Published: May 22, 2026

Modified: Jun 5, 2026

PUBLISHED

CVSS v3.1

9.1

CRITICAL

Description

Authentication bypass using an alternate path or channel in Microsoft Azure Active Directory B2C allows an unauthorized attacker to elevate privileges over a network.

Vendor	Product	Versions
Microsoft	Microsoft Entra	affected `-`

Weaknesses (CWE)

CWE-288

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

References

Microsoft Azure Active Directory B2C Elevation of Privilege Vulnerability

vendor-advisory

patch

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CVE-2026-33843

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References