---
id: CVE-2026-40375
title: Microsoft Dynamics Business Central Information Disclosure Vulnerability
summary: >-
  Missing authorization in Dynamics Business Central allows an authorized
  attacker to disclose information over a network.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-862
vendor: Microsoft
product: Microsoft Dynamics NAV 2017
affected:
  - dynamics_nav_2017 >= 1.0 < 30713
  - dynamics_nav_2018 >= 1.0 < 11.0.50736.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-08-11T21:01:46.759183Z'
published: '2026-08-11'
updated: '2026-10-28'
sourceUpdated: '2026-10-28T20:05:00.307Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-40375'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40375'
    label: Microsoft Dynamics Business Central Information Disclosure Vulnerability
tags:
  - cve.org
epss: 0.0084
epssPercentile: 0.57773
ingestedAt: '2026-09-08T18:07:34.902Z'
---

## Overview

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

## Affected

- `dynamics_nav_2017 >= 1.0 < 30713`
- `dynamics_nav_2018 >= 1.0 < 11.0.50736.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.