readline
readline.sh in socat before1.8.0.2 relies on the /tmp/$USER/stderr2 file.
Exploitability
AV:N
AC:L
PR:N
UI:N
Scope
S:U
Impact
C:H
I:H
A:H
9.8/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Other
CWE-61