Below is a blog-style post detailing how this specific version is often encountered and "exploited" in a lab environment.
Exploiting the Misconfigured: A Look at Bitvise WinSSHD 8.48 on DVR4
To summarize the state of the :
Exploiting the Misconfigured: A Look at Bitvise WinSSHD 8.48 on DVR4 bitvise winsshd 8.48 exploit