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CVE-2026-40371ImportantRevised 16 Jun

Microsoft Dynamics 365 (on-premises) Elevation of Privilege Vulnerability

MSRC advisory NVD CVE.org

Assessment

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

Severity
Important
CVSS base score
8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Impact
Elevation of Privilege
EPSS, next 30 days
0.8%Higher than 54.1% of scored CVEs · FIRST model run 29 Sep 2026 · about EPSS
Public exploit code
No Nuclei template lists it
Exploitability
Exploitation Less Likely
Publicly disclosed
No
Customer action
Required: apply the update
Component
Microsoft Dynamics 365 (on-premises)
Weakness
CWE-280: Improper Handling of Insufficient Permissions or Privileges
Issued by
Microsoft
Published
9 Jun 2026 · June 2026
Last revised
16 Jun 2026Updated the fixed version information and download link. The fix was previously believed to be included in Dynamics 365 Server (on-premises) version 6.2; however, it has been confirmed that the fix is included in Dynamics 365 Server v9.1 (on-premises) Update 1.45 (version 9.1.0045.0011). The downlo…

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Microsoft Dynamics
1 affected product
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