---
id: CVE-2026-105728
title: >-
  Improper authentication in Dynamics Business Central allows an unauthorized
  attacker to disclose information over a network.
summary: >-
  Improper authentication in Dynamics Business Central allows an unauthorized
  attacker to disclose information over a network.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-306
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T23:17:28.230'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105728'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105728'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-13T19:43:28.920Z'
vendor: Microsoft
product: Microsoft Dynamics NAV 2018
affected:
  - dynamics_nav_2018 >= 1.0 < 11.0.50736.0
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-13T22:06:51.580013Z'
epss: 0.00991
epssPercentile: 0.62642
---

## Overview

Improper authentication in Dynamics Business Central allows an unauthorized attacker to disclose information over a network.

## Remediation

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