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CVE-2026-66301

Microsoft Dynamics 365 (On-Premises) Information Disclosure Vulnerability

MEDIUM
6.5
CVSS Score
Published: August 11, 2026 at 05:05 PM UTC
Updated: October 24, 2026 at 04:10 PM UTC
1 product affected across 1 vendorDynamics 365

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1.0%
SSVC
No known exploit

Description

Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Dynamics 365· Microsoft
95%
All versions9.1 ≤ v < 9.1.47.069.0
Affected range stops below 9.1.0047.0006, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.1.47.06, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66301

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
CWE-200

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