CVE-2020-12514: Pepperl-Fuchs Io-Link Master 4-Eip Firmware

Medium severity, CVSS 4.9. EPSS: 1% 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 NULL Pointer Dereference that leads to a DoS in discoveryd

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.