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Microsoft Security Response CenterCVE-2026-40375

Microsoft Dynamics Business Central Information Disclosure Vulnerability

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

Read the vendor bulletin Get alerts for Microsoft Dynamics 365 Business Central 2024 Release Wave
6.5CVSS out of 10High severity
Scope

What the vendor says is affected

  • Microsoft Dynamics 365 Business Central 2024 Release Wave 2
  • Microsoft Dynamics 365 Business Central Release Wave 1 2025
  • Microsoft Dynamics 365 Business Central 2026 Release Wave 1
  • Microsoft Dynamics 365 Business Central Release Wave 2 2025

Versions the vendor lists as fixed

  • 26.0.50788
  • 28.0.50938
  • 27.0.50789
Next step

What the vendor recommends

Install KB5100263. Install KB5100266. Install KB5100265.

Review the complete instructions on the vendor's site
Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • The vendor changed its remediation guidance.
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-40375View CVSS, KEV, EPSS, and threat context
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