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Microsoft Security Response CenterCVE-2026-33843

Microsoft Azure Active Directory B2C Elevation of Privilege Vulnerability

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

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9.1CVSS out of 10Critical severity
Scope

What the vendor says is affected

  • Microsoft Entra ID
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-33843View CVSS, KEV, EPSS, and threat context
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