What is CVE-2026-40375?

CVE-2026-40375 is a medium-severity vulnerability in Microsoft Dynamics 365 Business Central 2024, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-08-11.

How severe is CVE-2026-40375?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Microsoft Dynamics 365 Business Central 2024

CVE-2026-40375

Missing authorization in Dynamics Business Central allows an authorized attacker to disclose information over a network.

Vulnerability class: Broken Access Control

Published 2026-08-11 · last modified 2026-08-13.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.2th percentile), scored 2026-09-27.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

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

Frequently asked questions

What is CVE-2026-40375?: CVE-2026-40375 is a medium-severity vulnerability in Microsoft Dynamics 365 Business Central 2024, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-08-11.
How severe is CVE-2026-40375?: Medium severity. CVSS v3 base score is 6.5 out of 10.