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Description

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

PUBLISHED Reserved 2026-04-13 | Published 2026-05-12 | Updated 2026-05-20 | Assigner microsoft




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-1390: Weak Authentication

Product status

25.0 (custom) before 25.18
affected

28.0 (custom) before 28.1
affected

26.0 (custom) before 26.12
affected

27.0 (custom) before 27.6
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417 (Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability) vendor-advisory patch

cve.org (CVE-2026-40417)

nvd.nist.gov (CVE-2026-40417)

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