Entra ID
CVE-2026-83711: Microsoft Azure Active Directory B2C Elevation of Privilege Vulnerability
Authorization bypass through user-controlled key in Microsoft Azure Active Directory B2C allows an unauthorized attacker to elevate privileges over a network.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityCRITICALCVSS 3.1 10
EPSS0.81%Chance of exploitation in 30 days
Public exploitNot tracked
FixNot yet
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Entra - | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Authorization bypass through user-controlled key in Microsoft Azure Active Directory B2C allows an unauthorized attacker to elevate privileges over a network.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.