CVE-2026-33103

Local information disclosure to low-privileged users

Published Apr 14, 2026 · Updated Apr 14, 2026

Improper access control in Microsoft Dynamics 365 (on-premises) before 9.1.0044.0015 allows local users to disclose information. Microsoft has not published the affected component or the access-control operation that mishandles protected data. Low-privileged local access is required, and the reported consequence is limited to confidentiality with no integrity or availability impact.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Microsoft Dynamics 365 (on-premises) before 9.1.0044.0015 allows local users to disclose information. Microsoft has not published the affected component or the access-control operation that mishandles protected data. Low-privileged local access is required, and the reported consequence is limited to confidentiality with no integrity or availability impact.

The record

CVE
CVE-2026-33103
Published
Apr 14, 2026
Updated
Apr 14, 2026
Vendor
Microsoft
Product
Microsoft Dynamics 365 (on-premises) version 9.0
Classifications
CWE-284
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.0.0 <9.1.0044.0015

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft Dynamics 365 (on-premises) version 9.0version=9.0.0 <9.1.0044.0015

Published CVSS scores

5.5Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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