CVE-2026-40379
Critical
Description
Exposure of sensitive information to an unauthorized actor in Azure Entra ID allows an unauthorized attacker to perform spoofing over a network.
SeverityCritical
CVSS9.3
Exploit probability—
Product
Microsoft Entra Id
PublishedMay 12, 2026
First seenMay 12, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft entra_id | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
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