CVE-1999-1010: An SSH 1.2.27 server allows a client to use the "none" cipher, even if it is not allowed by the server policy.

Security readout for executives and security teams

This old SSH server flaw can let a client use an unencrypted session even when the server policy says encryption is required. If the affected SSH 1.2.27 server is still present, credentials and administrative activity could be exposed to network monitoring. The source bundle does not show active exploitation or a named patch. Likely limited to very old environments still running SSH 1.2.27 or sshd1-era services. Modern SSH deployments are not identified as affected by the supplied sources. Treat as a legacy cleanup risk. It is urgent only if SSH 1.2.27 is still used on reachable systems, because administrative sessions could be exposed. Mitigation focus: Inventory for SSH 1.2.27 or sshd1-era services.; Retire affected legacy SSH servers where found.; Replace with a supported SSH implementation following vendor guidance..

Prepared

Jul 12, 2026, 05:57 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.