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CVE-2026-65815

HighCVSS 8.8/10Last modified Oct 24, 2026

Description

Deserialization of untrusted data in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Microsoft Dynamics 365 (on-premises) version 9.1	>= 9.0, < 9.1.0047.0006

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65815Vendor Advisory, Patch

Timeline

Published: Aug 11, 2026
Last modified: Oct 24, 2026
NVD status: Analyzed

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