Rio charged with violent conduct
The England international was involved in a clash with Hull striker Craig Fagan during the second half of United's 4-0 win.
It was Ferdinand's first match back after a long-term injury which had kept him out of the side since October.
Ferdinand can either plead guilty and accept a three-match suspension or challenge the decision with the risk of a stiffer punishment.
He could miss Premier League matches against Arsenal, Portsmouth and Aston Villa.