CVE-2020-12518: Phoenixcontact Plcnext Firmware

Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days.

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use the knowledge gained by reading the insufficiently protected sensitive information to plan further attacks.

Affected products

• Phoenixcontact Plcnext Firmware: before 2021.0 (fixed in 2021.0)

Published 2020-12-17. Last modified 2026-06-17.