An SSH 1.2.27 server allows a client to use the "none" cipher, even if it is not allowed by the server policy.
http://marc.info/?l=bugtraq&m=94519142415338&w=2
Source: Mitre, NVD
Published: 1999-12-14
Updated: 2026-06-16
Base Score: 2.1
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N
Severity: Low
Base Score: 9.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Severity: Critical
EPSS: 0.00244