These cabinets are probably ~15 years old, based on the age of the oldest appliances in the kitchen. From what I can tell, they have particleboard cores with wood veneer. The lower cabinets on either side of the stove are coming off the wall. It looks like the frame itself is still attached to the wall but the backing is separating (see first pic).
How would you approach fixing this? Is there a way to salvage without scrapping the whole cabinet?
I’m in the Northeast U.S.