The Sabres provided the update Tuesday, two weeks after their season ended. Bogosian missed the final eight games with what the team referred to only as a lower-body injury.
The timetable for recovery means Bogosian is in jeopardy of missing the start of next season.
The surgery is the latest setback for the 28-year-old hard-hitting defenseman, who has played 70 games just twice in his 11 NHL seasons. Bogosian was limited to playing just 18 games in 2017-18 before season-ending hip surgery in January of that season.
Last season, he finished with three goals and 19 points in 65 games, matching the most he played since 2011-12, when Bogosian was with Winnipeg.