The Cardinals inked Dysert to a one-year contract Tuesday, Darren Urban of the team's official site reports.
Dysert resided on the Cardinals' practice squad for much of the 2016 season, but among two stints on the active roster, he actually served as the backup QB when Carson Palmer sat out in Week 5 with a concussion. The 27-year-old could have competition for the third-string gig in the offseason, if the team opts to draft a signal-caller or bring in another veteran in free agency to provide depth behind Palmer and Drew Stanton.