CVE-2020-12511: Pepperl-Fuchs Io-Link Master 4-Eip Firmware

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a Cross-Site Request Forgery (CSRF) in the web interface.

Affected products

• Pepperl-Fuchs Io-Link Master 4-Eip Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master 4-Pnio Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master 8-Eip-L Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master 8-Eip Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master 8-Pnio-L Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master 8-Pnio Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master Dr-8-Eip-P Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master Dr-8-Eip-T Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master Dr-8-Eip Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master Dr-8-Pnio-P Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master Dr-8-Pnio-T Firmware: up to and including 1.5.48
• Pepperl-Fuchs Io-Link Master Dr-8-Pnio Firmware: up to and including 1.5.48

Published 2021-01-22. Last modified 2026-06-17.