CVE-2023-23389: Microsoft Malware Protection Engine

Medium severity, CVSS 6.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Microsoft Defender Elevation of Privilege Vulnerability

Affected products

• Microsoft Malware Protection Engine: version 1.1.20000.2 only

Published 2023-03-14. Last modified 2026-06-17.