It is possible to send a Modbus Encapsulated Interface read request with MEI type 14 to get the device's Vendor Name, Product Code, and Major and Minor Revision. If supported, the data can include Vendor URL, Product Name, Model Name, and User Application Name. The alternative is to detect Modbus on valid error responses from a device not supporting the function code 43 and MEI 14. (Source: Tenable Nessus)
As this issue is assessed as medium severity, users may evaluate their environment and schedule the update in the next maintenance or update cycle.