The executive producer of “60 Minutes,” Jeff Fager, was fired in September after he threatened a CBS News reporter looking into allegations about his behavior. The investigators wrote that the firing was justified, adding that Mr. Fager had “engaged in certain acts of sexual misconduct” with colleagues and failed to stop misbehavior by others.

They also said the misdeeds during Mr. Fager’s run as executive producer, which began in 2004, were less severe than under his powerful predecessor, Don Hewitt, who died in 2009.

Mr. Hewitt, who created the program in 1968 and produced the show for 36 years, is a journalistic legend. But investigators revealed that CBS continues to pay out a settlement to a woman who claimed that Mr. Hewitt sexually assaulted her on repeated occasions and destroyed her career. The settlement, reached in the 1990s, has been amended multiple times, including this year. In total, CBS has agreed to pay the former employee more than $5 million.