CVE-2026-40417: CWE-1390: Weak Authentication in Microsoft Microsoft Dynamics 365 Business Central 2024 Release Wave 2
Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-40417) in Microsoft Dynamics 365 Business Central 2024 Release Wave 2 (version 25.0) is classified under CWE-1390 (Weak Authentication). It allows an attacker with existing local authorization to escalate privileges due to insufficient authentication controls. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. The product is cloud-hosted, and Microsoft has issued an official fix to address the issue.
Potential Impact
An authorized attacker can exploit weak authentication to elevate privileges locally within the affected Microsoft Dynamics 365 Business Central environment, potentially gaining higher access rights that compromise confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability and manages remediation for the cloud-hosted Dynamics 365 Business Central service. Users should apply the official update as directed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417 to mitigate this issue.
CVE-2026-40417: CWE-1390: Weak Authentication in Microsoft Microsoft Dynamics 365 Business Central 2024 Release Wave 2
Description
Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Microsoft
Microsoft Dynamics 365 Business Central 2024 Release Wave 2
Microsoft
Microsoft Dynamics 365 Business Central 2026 Release Wave 1
Microsoft
Microsoft Dynamics 365 Business Central Release Wave 1 2025
Microsoft
Microsoft Dynamics 365 Business Central Release Wave 2 2025
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-40417) in Microsoft Dynamics 365 Business Central 2024 Release Wave 2 (version 25.0) is classified under CWE-1390 (Weak Authentication). It allows an attacker with existing local authorization to escalate privileges due to insufficient authentication controls. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. The product is cloud-hosted, and Microsoft has issued an official fix to address the issue.
Potential Impact
An authorized attacker can exploit weak authentication to elevate privileges locally within the affected Microsoft Dynamics 365 Business Central environment, potentially gaining higher access rights that compromise confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability and manages remediation for the cloud-hosted Dynamics 365 Business Central service. Users should apply the official update as directed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417 to mitigate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-13T00:27:50.798Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417","vendor":"Microsoft"}]
Threat ID: 6a03655bcbff5d861008caf2
Added to database: 05/12/2026, 17:37:31 UTC
Last enriched: 08/11/2026, 16:49:43 UTC
Last updated: 09/14/2026, 22:01:33 UTC
Views: 80
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.