Possible attack"on 4g modem

Hi, I wanted to know what are the possible attack (packet sniffing,malware injection,MITM ecc.) on 4g modem. I know that when inside a phone a sim (4g)is vulnerable to a variety of "attacks" because of the lte structure. What is the difference when inside a modem.
Thanks for any reply

submitted by /u/Harold3D
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from hacking: security in practice https://ift.tt/K7zCcwg