What is CVE-2025-30391?

CVE-2025-30391 is a high-severity vulnerability in Microsoft Dynamics 365 Customer Service, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2025-04-30.

How severe is CVE-2025-30391?

High severity. CVSS v3 base score is 8.1 out of 10.

Improper input validation in Microsoft Dynamics 365 Customer Service

CVE-2025-30391

Improper input validation in Microsoft Dynamics allows an unauthorized attacker to disclose information over a network.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.011 (63.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microsoft Dynamics 365 Customer Service
Microsoft Dynamics_365_customer_service

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

Microsoft Dynamics Information Disclosure Vulnerability (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-30391?: CVE-2025-30391 is a high-severity vulnerability in Microsoft Dynamics 365 Customer Service, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2025-04-30.
How severe is CVE-2025-30391?: High severity. CVSS v3 base score is 8.1 out of 10.