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Microsoft Security Response CenterCVE-2026-40417

Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability

HighVendor CVSS 7.8 / 10 1 CVE Published May 12, 2026 at 7:00 AM UTC

Summary

Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally.

Products covered

  • Microsoft Dynamics 365 Business Central 2026 Release Wave 1

  • Microsoft Dynamics 365 Business Central Release Wave 1 2025

  • Microsoft Dynamics 365 Business Central Release Wave 2 2025

  • Microsoft Dynamics 365 Business Central 2024 Release Wave 2

Remediation

Install KB5093780. Install KB5086069. Install KB5086070. Install KB5086068.

Vendor-listed fixes

  • 28.0.49873

  • 26.0.48120

  • 27.0.48102

  • 25.2.48119

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.