Elevation of Privilege Vulnerability in Microsoft Dynamics 365 by Microsoft
CVE-2026-40371

8.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Dynamics 365 (on-premises) Version 9.1
Vendor
CVE Published:
9 June 2026

What is CVE-2026-40371?

A vulnerability exists in Microsoft Dynamics 365 (on-premises) due to improper handling of insufficient permissions, which may allow an authorized attacker to gain elevated privileges over a network. This situation can exploit the system's capabilities beyond intended access levels, highlighting the importance of robust permissions management and timely updates.

Affected Version(s)

Microsoft Dynamics 365 (on-premises) version 9.1 9.0 < 9.1.0045.0011

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.