CVE-2026-42901

CRITICAL

Microsoft Entra ID Elevation of Privilege Vulnerability

Title source: cna
STIX 2.1

Description

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

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft Entra ID Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42901

Scores

CVSS v3 10.0
EPSS 0.0003
EPSS Percentile 9.0%
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

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-346
Status published
Products (1)
Microsoft/Microsoft Entra -
Published May 22, 2026
Tracked Since May 23, 2026