CVE-2021-40457: Microsoft Dynamics 365

High severity, CVSS 7.4. EPSS: 1.6% chance of exploitation in the next 30 days.

Microsoft Dynamics 365 Customer Engagement Cross-Site Scripting Vulnerability

Affected products

• Microsoft Dynamics 365: version 9.0 only; version 9.1 only

Published 2021-10-13. Last modified 2026-06-17.