CVE-2026-40417

HIGH

Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability

Title source: cna
STIX 2.1

Description

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

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417

Scores

CVSS v3 7.8
EPSS 0.0004
EPSS Percentile 14.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-1390
Status published
Products (4)
Microsoft/Microsoft Dynamics 365 Business Central 2024 Release Wave 2 25.0 - 25.18
Microsoft/Microsoft Dynamics 365 Business Central 2026 Release Wave 1 28.0 - 28.1
Microsoft/Microsoft Dynamics 365 Business Central Release Wave 1 2025 26.0 - 26.12
Microsoft/Microsoft Dynamics 365 Business Central Release Wave 2 2025 27.0 - 27.6
Published May 12, 2026
Tracked Since May 12, 2026