Yes; in 1997, I created a simple Javascript-like embeddable scripting language for the network security scanner product I was a part of (Secure Networks Ballista). Instead of a BSD-style sockets interface, it was designed around direct access to the network interface and had a standard library that implemented Ethernet/IP/TCP, and the language had primitives for picking apart and composing packets. We used it to to write low-level network tests without writing C code.

At the time, there was no mainstream realistic option for embedding popular languages that lots of people knew into C applications. A few years later, I'd have solved the same problem with Tcl and a few extensions; then Python, then Javascript.