Duberry was set for a move to Molineux in the summer before Kevin Blackwell persuaded him to stay on at Elland Road.
With Paul Butler and Clark Carlisle forming a solid partnership in defence the former Chelsea centre-half now looks surplus to requirements and Leeds may be willing to let him go and use the money saved to strengthen other parts of the squad.
Wolves are keen to add another defender to their squad with ongoing injury doubts over Joleon Lescott and Joachim Bjorklund.