CVE-2026-42898

Critical

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.

SeverityCritical

CVSS9.9

Exploit probability68. percentile1.2%

Product

Microsoft Dynamics

PublishedMay 12, 2026

First seenMay 12, 2026

Weakness typeCWE-94Code injection

How to fix

Update

microsoft dynamics_3659.1.45.11 or later

Patches

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42898

Affected products

Product	Affected versions	Fixed in
microsoft dynamics_365	9.1.1.914 ≤ v < 9.1.45.11	9.1.45.11

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