The Nittany Lions trailed at the end of the first half.
Tight ends Khalil Dinkins and Jerry Cross weren't listed in the report after being inactive against West Virginia last week.
Penn State returns home to take on the Falcons on Saturday.
Freiermuth's deal is worth $48.4 million over four years.
Vilbert had a strip-sack in his first game in two seasons after an extended rehab process.
Running back Terion Stewart scored three touchdowns in week one.