CVE-2025-41647: Lenze PLC Designer v4

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

A local, low-privileged attacker can learn the password of the connected controller in PLC Designer V4 due to an incorrect implementation that results in the password being displayed in plain text under special conditions.

Affected products

• Lenze PLC Designer v4: from 0.0.0, up to and including 4.0.0

Published 2025-06-25. Last modified 2026-06-17.