Jay Dudley added a 53-yard interception return for a touchdown for the Bulldogs (2-4, 1-1 Western Athletic Conference), who snapped a three-game losing streak. Isham hit David Gru for a 6-yard score in the third quarter, then got in himself from the 1 a few minutes later. He finished with 163 yards passing.
Justin Veltung scored on an 81-yard punt return with 3:35 remaining for the Vandals (1-5, 0-2). Veltung also led Idaho receivers with six catches for 94 yards.
Idaho's Brian Reader had 244 yards passing but completed just 19 of his 47 attempts, with three interceptions. The Vandals defense recorded a safety when Andre Ferguson tackled Lennon Creer in the end zone early in the first quarter.