The Oath Against Modernism itself assures us the Charism of Truth shall always remain in the Succession of the Episcopacy from the Apostles until the end of time: "I firmly hold, then, and shall hold to my dying breath the belief of the Fathers in the charism of truth, which certainly is, was, and always will be in the succession of the episcopacy from the apostles."
Apostolic Succession involves not only the transmission of Holy Orders but also of Episcopal Authority or Jurisdiction as the CE explains.
Bishop Athanasius Schneider, Cardinal Burke etc, are e.g. of Bishops today who believe explicit faith in Christ is necessary for salvation.