Download of Code Without Integrity Check vulnerability in PHOENIX CONTACT classic line PLCs allows an unauthenticated remote attacker to modify some or all applications on a PLC.

Incorrect Permission Assignment for Critical Resource vulnerability in multiple products of the PHOENIX CONTACT classic line allow an remote unauthenticated attacker to gain full access of the affected device.

An unauthenticated, remote attacker could upload malicious logic to devices based on ProConOS/ProConOS eCLR in order to gain full control over the device.

Multiple Phoenix Contact devices allow remote attackers to establish TCP sessions to port 1962 and obtain sensitive information or make changes, as demonstrated by using the Create Backup feature to traverse all directories.