What is CVE-2026-40412?

CVE-2026-40412 is a critical-severity vulnerability in Microsoft Azure Orbital Spatio, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 10.0/10. Published 2026-05-22.

How severe is CVE-2026-40412?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Arbitrary file upload in Microsoft Azure Orbital Spatio

CVE-2026-40412

Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code over a network.

Vulnerability class: Unrestricted File Upload

EPSS: 0.004 (61.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Microsoft Azure Orbital Spatio
Microsoft Azure_orbital_spatio

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

secure@microsoft.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-40412?: CVE-2026-40412 is a critical-severity vulnerability in Microsoft Azure Orbital Spatio, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 10.0/10. Published 2026-05-22.
How severe is CVE-2026-40412?: Critical severity. CVSS v3 base score is 10.0 out of 10.