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

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Category

Information Disclosure

Exploit Status

Not Exploited

Exploitation Likelihood

Unlikely

Patch Tuesday

2026-Apr

Released

2026-04-14

Description

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

FAQ

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.

Affected Products (1)

Microsoft Dynamics

• Microsoft Dynamics 365 (on-premises) version 9.0

Security Updates (1)

• 5078943

Acknowledgments

<a href="https://twitter.com/hoangnx99">Hoangnx and hoangha</a> with <a href="https://lab.viettelcybersecurity.com/">VCSLab of Viettel Cyber Security</a>

Revision History

• 2026-04-14: Information published.