CVE-2026-42901
PUBLISHED
Published: 22 May 2026, 22:04
Last modified:23 May 2026, 03:19
Vulnerability Summary
Overall Risk (default)
high
70/100 CVSS Score
10 CRITICAL
v3.1 (cve.org)
EPSS Score
0.03% LOW
0% probability
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
22 May 2026, 22:04
Published
Vulnerability first disclosed
23 May 2026, 03:19
Last Modified
Vulnerability information updated
Description
Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
CVSS Metrics
- v3.1•CRITICAL•Score: 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
EPSS Trends
Current EPSS score: 0.03%• Percentile: 9%
Techniques & Countermeasures
- CWE-346•Origin Validation Error
The product does not properly verify that the source of data or communication is valid.
Affected Systems
- microsoft•microsoft entra
-