The actual oven vent runs from the oven cavity directly to where it exits in the back guard. They should be sealed between those points.Where do those oven vent systems run to?
There is a chance however there might be other holes in that panel just for appearance and not necessarily an actual oven vent. If so, they might allow access to the spaces between the body panels where there is the wiring and also fiberglass insulation... which rodents love to nest in.
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