The NCCIC has published an advisory on a use of hard-coded credentials vulnerability in WAGO Series 750-88x and 750-87x. Numerous versions of these two products are affected. This vulnerability allows a remote attacker to change the settings or alter the programming of the device. WAGO has released a security advisory and recommends updating to the newest firmware and taking a series of defense measures. The NCCIC also provides a list of recommended measures for addressing the vulnerabilities. Read the advisory at NCCIC/ICS-CERT.