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CVE-2026-33843 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:9.1 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33843	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-288	Authentication Bypass Using an Alternate Path or Channel	[email protected]

Affected Products

Product	Versions
microsoft entra id	All versions
CPE cpe:2.3:a:microsoft:entra_id:-:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jul 23, 2026	CVE Translated	[email protected]
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
May 27, 2026	Initial Analysis	[email protected]
May 22, 2026	New CVE Received	[email protected]