WSD aims to provide a network experience similar to plugging in a USB device; once the device is detected on port 5357, Windows can automatically install the necessary drivers. Security Considerations
If you do not need to discover network printers or share files, you can close the port by turning off "Network Discovery" in the Windows Control Panel > Network and Sharing Center > Advanced sharing settings . Description Protocol TCP (Transmission Control Protocol) Service Web Services on Devices (WSD) Alternative port 5357
| Item | Detail | |------|--------| | Primary service | WSDAPI (Web Services for Devices) | | Transport | TCP | | Typical environment | Local LAN, Windows with WSD-enabled devices | | Risk if open to internet | Low to moderate (information disclosure) | | Recommended action | Block inbound on public/WAN interfaces; allow only on trusted LAN | WSD aims to provide a network experience similar