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CVE-2026-40379 - Vulnerability Analysis

CriticalCVSS: 9.3

Last Updated: May 12, 2026

Azure Entra ID - Information Disclosure

Published: May 12, 2026Updated: May 12, 2026Remote Exploitable

Overview

Azure Entra ID contains an information disclosure vulnerability caused by exposure of sensitive information, letting unauthorized attackers perform spoofing over a network, exploit requires network access.

Severity & Score

Severity: Critical

CVSS Score: 9.3

Impact

Unauthorized attackers can perform network spoofing, potentially leading to impersonation and unauthorized access.

Mitigation

Update to the latest version.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40379

Related Resources

Vulnerability Intelligence Dashboard
Credential Scanner

Details

CVE ID: CVE-2026-40379
Severity: Critical
CVSS Score: 9.3
Type: undefined
Status: new

CWE

CWE-200

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N