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Microsoft Security Response CenterCVE-2026-40417

Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability

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

Read the vendor bulletin Get alerts for Microsoft Dynamics 365 Business Central 2026 Release Wave
7.8CVSS out of 10High severity
Scope

What the vendor says is affected

  • 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

Versions the vendor lists as fixed

  • 28.0.49873
  • 26.0.48120
  • 27.0.48102
  • 25.2.48119
Next step

What the vendor recommends

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

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  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.

Vulnerabilities

CVEs named in this advisory

CVE-2026-40417View CVSS, KEV, EPSS, and threat context
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