CVE-2026-42898

CRITICAL

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Title source: cna
STIX 2.1

Description

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42898

Scores

CVSS v3 9.9
EPSS 0.0011
EPSS Percentile 29.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-94
Status published
Products (3)
microsoft/dynamics_365 9.1.1.914 - 9.1.45.11
Microsoft/Microsoft Dynamics 365 (on-premises) version 9.1 9.0 - 9.1.44.15
Microsoft/Microsoft Dynamics 365 (on-premises) version 9.1 9.0 - 9.1.45.11
Published May 12, 2026
Tracked Since May 12, 2026