Detections
Analytics

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.

References

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

https://www.infosecurity-magazine.com/news/microsoft-17-critical-flaws-may/

https://thehackernews.com/2026/05/microsoft-patches-138-vulnerabilities.html

https://securityaffairs.com/192086/uncategorized/microsoft-patch-tuesday-for-may-2026-fix-138-bugs-some-of-them-are-alarming.html

https://www.theregister.com/patches/2026/05/13/doozy-of-a-patch-tuesday-includes-30-critical-microsoft-cves/5239224

https://cyberscoop.com/microsoft-patch-tuesday-may-2026/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-29718

Details

Source: Mitre, NVD

Published: 2026-05-12

Updated: 2026-05-14

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.9

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00987