[{"_id":4545,"username":"testt","data":{"passwords":[{"dataID":"175","username":"enc_data","password":"enc_data","any":"enc_data","any1":"enc_data","any3":"enc_data"}],"fav_list":[]}}]

db.collection.update({},{"$set":{"data.passwords.$[element].propery_to_set":"new propery value"}},{arrayFilters:[{"element.dataID":"175"}],"multi":false,"upsert":false})