Is it possible to realize MitM attack between bitcoin full node and listener of this node?

[Bitcoin]

Is it possible to realize MitM attack between bitcoin full node and listener of this node?

I have the appication listening bitcoin full node and receiving tx messages. Is it possible to change TxOut value by man in the middle, so I don't detect this changes?

Node I connect is public node, not my own. My app just recieve and send messages. No validate. When it recieve message from node it just checks checksum. So, if I'm right, Man-In-The-Middle can change message and it's checksum while message transfering.

Source: Is it possible to realize MitM attack between bitcoin full node and listener of this node?