He was tried for war crimes and specifically for supervising the unit that donned U.S. uniforms and created havoc in the Battle of the Bulge. His defense was that it was legal in the law of war so long as it is done before commencing hostilities. The court acquitted when there was testimony that British SOE agents donned German uniforms when operating behind enemy lines.
The man was an unreconstructed Nazi to the end, living mostly in Franco's Spain and Argentina.
Here's a fact I learned: after a coup in Egypt Skorzeny and some other Nazis gave volunteers in Egypt commando training. One of the young volunteers was Yasser Arafat.
Although there was an active warrant for his arrest in West Germany at the time, he couldn’t get the surgery he needed in Spain, so he went back to Germany for medical treatment and recovery. Everyone looked the other way.
He’s also the guy that took control at OKW after the failed July coup, stopped the drumhead executions (that may have been part of a coverup), and basically ran the war until reliable senior officers could be brought in.