ICS-CERT has released an advisory on a WAGO PFC200 Series vulnerability. Numerous versions of this product are affected. Successful exploitation of this vulnerability could allow a remote attacker unauthorized access to the PLC to perform operations on the file system without authentication. WAGO released a security patch with FW11. ICS-CERT also recommends a series of defensive measures to minimize the risk of exploitation of this vulnerability. ICS-CERT.