5357 Hacktricks — Port

To verify if port 5357 is active on a machine, administrators can use the following command in a Windows Command Prompt: netstat -abno | findstr 5357 Recommended Security Measures

Ensure the Windows Firewall is configured to only allow connections on port 5357 from the local network (LAN) and never from the public internet. port 5357 hacktricks

This allows applications like the Windows Print Spooler or Windows Fax and Scan to communicate directly with WSD-enabled hardware. Many network printers from manufacturers like , Brother , Canon , and Epson expose a WSD endpoint on this port by default. Penetration Testing and Information Leakage To verify if port 5357 is active on

While primarily an SMBv3 vulnerability, some research has linked WSD-exposed interfaces to broader exploit chains in similar network discovery contexts. Detection and Mitigation port 5357 hacktricks

A stack-based buffer overflow vulnerability. Attackers could send a crafted WS-Discovery message with an overly long "MIME-Version" string to execute arbitrary code with service-level privileges.

Historically, WSDAPI has been subject to critical vulnerabilities:

Port 5357 – WSDAPI (Web Services for Devices) - PentestPad