CVE-2026-65815: Microsoft Dynamics 365

High severity, CVSS 8.8. EPSS: 1.7% chance of exploitation in the next 30 days.

Deserialization of untrusted data in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.

Affected products

• Microsoft Dynamics 365: from 9.1, before 9.1.47.06 (fixed in 9.1.47.06)

Published 2026-08-11. Last modified 2026-08-17.