CVE-2026-42901CWE-346

Microsoft Entra ID Elevation of Privilege Vulnerability

Critical · published May 22, 2026

CVSS v3.1
10.0
EPSS
0%
Percentile
38.6
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
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
CVSS v4.0
Not supplied
EPSS
0.00456 · 38.6th percentile
Weakness
CWE-346 · Origin Validation Error
Published
2026-05-22T22:04Z
EPSS history
Timeline
  • 22 MAY 22:04Z
    Microsoft Entra ID Elevation of Privilege Vulnerability
    cvelistv5