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)

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.014 (71.3th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-30391: held from 0.013 to 0.014.

EPSS over last 30 days · oldest: 0.013 · newest: 0.014 · change: +0.001

Affected products

Weakness classification (CWE)

References

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.