Vulnerability: Denial of Service and System Reboot via Crafted LLDP Packet on Phoenix Contact PLCnext Control Devices

Vulnerability: Denial of Service and System Reboot via Crafted LLDP Packet on Phoenix Contact PLCnext Control Devices

CVE-2020-12521 · MEDIUM Severity

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a high system load in the PROFINET stack. An attacker can cause failure of system services or a complete reboot.

Learn more about our Contact.