Shumpert was pulled over for a lane violation Aug. 10 and arrested by Fayette County Police. There has been no court date set in the matter. The Cavs said they have been in contact with Shumpert and had no further comment.
The NBA has typically suspended players two games for a first DUI conviction or guilty plea.
The Cavaliers open training camp Sept. 26. Shumpert, who attended Georgia Tech, spends his summers training in Atlanta.
Cleveland acquired Shumpert in a trade with the New York Knicks two seasons ago and inked him to a four-year, $40 million extension before the 2015-16 season.
The 26-year-old defensive stopper averaged 3.3 points and 2.2 rebounds in 21 playoff games this season. He made his mark on the Cavs' championship run with a memorable four-point play in Game 7 against the Golden State Warriors.
ESPN's Brian Windhorst and Dave McMenamin contributed to this report.