Published Apr 14, 2026Sources checked Nov 14, 2026
5.5MEDIUMCVSS out of 10
What this means
Review the available evidence
CVE-2026-33103 and is rated Medium severity with a CVSS score of 5.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
What to do next
Remediation and response
Microsoft Security Response Center guidance
Vendor revision: Apr 28, 2026
Install KB5078943.
Vendor-listed releases
9.1.0044.0015
CISA KEVNot listedBased on the latest collected catalog
EPSS0.2%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2026-33103?
Improper access control in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information locally.