Summary
generated automatically from NVD dataCVE-2026-40379 affects Microsoft Entra ID (referred to as Azure Entra ID in the description) and stems from exposure of sensitive information to an unauthorized actor, classified as CWE-200. An unauthorized attacker can exploit it over a network to perform spoofing. It is rated CRITICAL with a CVSS v3.1 score of 9.3, with no privileges required, user interaction needed, and a changed scope with high confidentiality and integrity impact.
NVD description
Exposure of sensitive information to an unauthorized actor in Azure Entra ID allows an unauthorized attacker to perform spoofing over a network.
EPSS · FIRST.org
0.95%probability of exploitation in the next 30 days
Higher than 60% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 12 mai 2026
- Updated
- 17 juin 2026
- Status
- Analyzed
- Source
- secure@microsoft.com
Affected products
Weaknesses (CWE)
References (1)
Similar CVEs
Other vulnerabilities of type CWE-200
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