CVE-2026-40371: Microsoft Dynamics 365

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Improper handling of insufficient permissions or privileges in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to elevate privileges over a network.

Affected products

• Microsoft Dynamics 365: from 9.1, before 9.1.45.11 (fixed in 9.1.45.11)

Published 2026-06-09. Last modified 2026-07-23.