Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW07 allows an attacker to change some special parameters without authentication. This issue affects: WAGO 750-852 version FW07 and prior versions. WAGO 750-880/xxx-xxx version FW07 and prior versions. WAGO 750-881 version FW07 and prior versions. WAGO 750-831/xxx-xxx version FW07 and prior versions. WAGO 750-882 version FW07 and prior versions. WAGO 750-885/xxx-xxx version FW07 and prior versions. WAGO 750-889 version FW07 and prior versions.