Critical severity9.1NVD Advisory· Published May 22, 2026· Updated May 27, 2026

CVE-2026-33843

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.

Affected products

Microsoft/Entra ID
cpe:2.3:a:microsoft:entra_id:-:*:*:*:*:*:*:*
Microsoft/Azure Active Directory B2Cllm-fuzzy

Patches

Vulnerability mechanics

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33843nvdVendor Advisory

News mentions

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cvss	0.591
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000