The ornamental design for a vehiclerearbumper, as shown and described.
FIG. 1 is a perspective view of a vehicle rear bumper showing our new design;
FIG. 2 is a top plan view thereof and;
FIG. 3 is a front elevational view thereof.
The bumper is intended for attachment to a vehicle, and the broken lines in the drawings are not part of the claimed design. The bottom and back views of the running board are not part of the claimed design.