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Microsoft Security Response CenterCVE-2026-40375

Microsoft Dynamics Business Central Information Disclosure Vulnerability

HighVendor CVSS 6.5 / 10 1 CVE Published Aug 11, 2026 at 7:00 AM UTC

Summary

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

Products covered

  • 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

Remediation

Install KB5100263. Install KB5100266. Install KB5100265.

Vendor-listed fixes

  • 26.0.50788

  • 28.0.50938

  • 27.0.50789

CVEs in this advisory 1

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.

Updates

  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.