Leak from lack of kick-out flashing, not from stucco
A leak causes damage inside. An insurance claim is filed.
What do you guess the problem is here? The owner is selling the house and the buyers inspector found this damage. Cracking on the corners of the exterior stucco wall have allowed water to penetrate and damage the OSB and plywood. The owner filed a homeowners claim for the damage. I am the adjuster.
The leak causing the damage is from the roof intersection above, and not the crack in the stucco. A solution would be installing a counter flashing and kick-out flashing. Water runs downhill.