CVE-2026-40379

Exposure of sensitive information to an unauthorized actor in Azure Entra ID allows an unauthorized attacker to perform spoofing over a network.

CVSS v3 9.3 CRITICAL

9.3^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40379	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:entra_id:-:*:*:*:*:*:*:*

History

26 Oct 2026, 18:10

Type	Values Removed	Values Added
Summary		(es) Exposición de información sensible a un actor no autorizado en Azure Entra ID permite a un atacante no autorizado realizar suplantación de identidad sobre una red.

Information

Published : 2026-05-12 18:17

Updated : 2026-10-26 18:10

NVD link : CVE-2026-40379

Mitre link : CVE-2026-40379

CVE.ORG link : CVE-2026-40379

JSON object : View

Products Affected

microsoft

entra_id

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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