CVE-2026-40375
MEDIUM 6.5Missing authorization in Dynamics Business Central allows an authorized attacker to disclose information over a network.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.8%chance of exploitation in 30 days · 53rd percentile
Impact if exploited
6.5CVSS 3.1 · MEDIUM
- ConfidentialityHigh
- IntegrityNone
- AvailabilityNone
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-40375/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-40375/poc.json
Affected
Vendors Microsoft
Products Microsoft Dynamics 365 Business Central 2024 Release Wave 2 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 Dynamics 365 Business Central 2024 Dynamics 365 Business Central 2025 Dynamics 365 Business Central 2026
Weakness (CWE)
- CWE-862: : Missing Authorization
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Microsoft | Dynamics 365 Business Central 2024 | ≥ 25.1.25900 |
| Microsoft | Dynamics 365 Business Central 2025 | ≥ 26.0 and < 26.0.50788 |
| Microsoft | Dynamics 365 Business Central 2025 | ≥ 27.0 and < 27.0.50789 |
| Microsoft | Dynamics 365 Business Central 2026 | ≥ 28.0 and < 28.0.50938 |
All CVSS metrics
- MEDIUM 6.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - MEDIUM 6.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N