Most historical vulnerabilities in Bitvise SSH Server have been related to local privilege escalation or minor denial-of-service (DoS) flaws, which were patched in subsequent versions. Technical Summary for v8.48 Exploit Availability None (Publicly available) Release Date October 2020 Security Support End of Life (Superseded by v9.xx) Primary Risk

Version 8.48 disabled UPnP gateway forwarding for IPv6 because it was ineffective and caused errors.

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If the software is installed in a custom directory (e.g., D:\Programs ) where Windows filesystem permissions are not strictly limited to administrators, any non-administrative user on the system can rename or modify the installation files.

The single most effective remediation against legacy vulnerabilities is to update the software.