CVE-2026-69414: Microsoft Malware Protection Engine

High severity, CVSS 7.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".

Affected products

• Microsoft Malware Protection Engine: affected versions not specified

Published 2026-08-14. Last modified 2026-09-03.