Entra ID

CVE-2026-42901: Microsoft Entra ID Elevation of Privilege Vulnerability

Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.

Published

ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityCRITICALCVSS 3.1 10
EPSS0.46%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 / branchFixed in
Microsoft Entra -See the advisory

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

Origin validation error in Microsoft Entra ID 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.

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