Does Kang the Conqueror have any known weaknesses?

He has feelings not finished grieving for his loss of his human wife.

Also he uses Iron Man’s tech and can be hacked by Tony Stark.

Kang existed in several overlapping alternate universes. He was his own weakness. When the 2 Kangs overlapped in the same universe, they would battle & in essence he would kill himself.

Immortus, an older, wiser, less murderous version of himself would occasionally show up and thwart his efforts.