MSRC-CVE-2026-33103 — Microsoft Dynamics 365 (On-Premises) Information Disclosure Vulnerability

Summary

Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Unlikely. Customer action: Required.

Details

What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is sensitive information.

Security updates
9.1.0044.0015 — https://support.microsoft.com/help/5078943

Vulnerabilities 1

Medium 5.5

CVE-2026-33103

Microsoft Dynamics 365 (On-Premises) Information Disclosure Vulnerability

Improper access control in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information locally.

Microsoft Microsoft Dynamics 365 (on-premises) version 9.0

Apr 14, 2026

Revision history

2026-04-28 #2
Added acknowledgements. This is an informational change only.
2026-04-14 #1
Information published.

References

CVE-2026-33103 Microsoft Dynamics 365 (On-Premises) Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33103
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss