CVE-2026-40371 Details
Description
Improper handling of insufficient permissions or privileges in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to elevate privileges over a network.
A vulnerability in Microsoft Dynamics 365 (on-premises) has been identified, allowing an authorized attacker to elevate privileges over a network. This issue arises from improper handling of permissions, enabling attackers to assign themselves the System Administrator role and gain full administrative control.
Users can download the security update for Microsoft Dynamics 365 (on-premises) version 9.1 through the Microsoft Dynamics 365 Railyard Release Management platform.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 10, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40371 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-755 | Improper Handling of Exceptional Conditions | [email protected] |
| CWE-280 | Improper Handling of Insufficient Permissions or Privileges | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft dynamics 365 | >= 9.1, < 9.1.45.11 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 9, 2026 | New CVE Received | [email protected] |