Yes, sort of. My 1972 YF has circular weep holes about two inches in diameter cut into the aft bottom stringers under the cockpit. Bilge water moves thru there when the bow lifts during cruise. The inner volume is some kind of foam, closed cell I hope so as to not absorb moisture. To my surprise, these exposed foam sections were not epoxy coated. The exposed foam is still hard to the touch.
I took no action as I haul only for brief periods for bottom maintenance and figured these would take a good while to thoroughly dry. (I could likely dry them in place in while the boat is in the water with some small light bulbs.)
I suspect that was sloppy contruction because I found the same kind of issue when I removed the anchor windlass on the bow deck and discovered the chain/rope hole had balsa deck coring exposed to water...that WAS soft so I dug the soft coring out around the hole, let the rest dry, coated with epoxy liquid and immediately and filled in with epoxy putty (to get a single bond), finally coating the hole opening with epoxy. Better than new now.