CVE-2023-36657: Opswat Metadefender Kiosk

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in OPSWAT MetaDefender KIOSK 4.6.1.9996. Built-in features of Windows (desktop shortcuts, narrator) can be abused for privilege escalation.

Affected products

• Opswat Metadefender Kiosk: from 4.5.0, up to and including 4.6.1.9996

Published 2023-09-15. Last modified 2026-06-17.