: Before 8.48, the server's file transfer subsystem would sometimes abort abruptly during SCP uploads if a file-write failed, rather than sending a proper error message. This was fixed to ensure better session stability.
The following article examines the security posture of version 8.48, addressing common misconceptions and known technical behaviors associated with this specific release. Analyzing Security in Bitvise SSH Server 8.48 bitvise winsshd 848 exploit
If you are running version 8.48 or older, you may also be exposed to legacy vulnerabilities found in earlier versions: : Before 8
For older security issues, version 7.41 and below were notably affected by a security bypass vulnerability related to the compression library. However, for version 8.48 specifically, the remains the most significant documented protocol-level exploit. You can find detailed technical history on the Bitvise SSH Server Version History page. Bitvise SSH Server < 7.41 Security Bypass Vulnerability Analyzing Security in Bitvise SSH Server 8