Improper Neutralization of Special Elements used in a Command ('Command Injection')
picocom before 2.0 has a command injection vulnerability in the 'send and receive file' command because the command line is executed by /bin/sh unsafely.
CWE-77 - Command Injection
A command injection attack involves injecting an operating system command through the data input, which gets executed on the host operating system with the privileges of the victimized application. The impact of a command injection attack may range from loss of data confidentiality and integrity to unauthorized remote access to the hosting system. The attack may cause serious data breaches and system takeover.