CVE-2026-40375Important
Microsoft Dynamics Business Central Information Disclosure Vulnerability
Assessment
Missing authorization in Dynamics Business Central allows an authorized attacker to disclose information over a network.
- Severity
- Important
- CVSS base score
- 6.5CVSS:3.1/
AV:N/ AC:L/ PR:L/ UI:N/ S:U/ C:H/ I:N/ A:N/ E:U/ RL:O/ RC:C - Impact
- Information Disclosure
- EPSS, next 30 days
- 0.8%Higher than 56.2% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
- Exploitability
- Exploitation Less Likely
- Publicly disclosed
- No
- Customer action
- Required: apply the update
- Component
- Dynamics Business Central
- Weakness
- CWE-862: Missing Authorization
- Issued by
- Microsoft
- Published
- 11 Aug 2026 · August 2026
- Last revised
- 11 Aug 2026
Updates that fix it
3 KBs| KB | Type | Restart | Applies to | Other CVEs |
|---|---|---|---|---|
| KB5100263 | Security Update | — | Microsoft Dynamics 365 Business Central Release Wave 1 2025 | All CVEs in KB5100263 |
| KB5100265 | Security Update | — | Microsoft Dynamics 365 Business Central Release Wave 2 2025 | All CVEs in KB5100265 |
| KB5100266 | Security Update | — | Microsoft Dynamics 365 Business Central 2026 Release Wave 1 | All CVEs in KB5100266 |
Affected products
Microsoft Dynamics4 affected 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