Microsoft Entra ID
CVE-2026-42901 — Microsoft Entra ID Elevation of Privilege Vulnerability
Executive Summary
Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
Overview
10
CVSS CRITICAL
Critical
MS Severity
Not Exploited
MS Exploit Status
N/A
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Changed
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 8.7
EPSS Score
0.00393
probability of exploitation in the next 30 days
0.30885 percentile - updated 2026-06-21
View on FIRST.org
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Thomas Knudson, Sridhar Periyasamy
References
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