Weak Authentication in Microsoft Dynamics 365 Business Central - CVE-2026-40417
Published: May 13, 2026
Vulnerability identifier: #VU131316
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-40417
CWE-ID: CWE-1390
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to bypass authentication process.
The vulnerability exists due to weak authentication in Microsoft Dynamics 365 Business Central. A local user can bypass authentication process and gain elevated privileges on the system.
Affected software
Microsoft Dynamics 365 Business Central
How to mitigate CVE-2026-40417
Install updates from vendor's website.
Microsoft Dynamics 365 Business Central - addressed in versions 25.18, 26.12, 27.6, 28.1