Line an 8-inch square pan with parchment, leaving overhang for lifting.
Stir cookie crumbs, granulated sugar, and salt in a bowl.
Pour in melted butter and mix until evenly moistened and sandy.
Press mixture firmly into the pan base using a flat cup. Chill 10 minutes.
Beat cream cheese and powdered sugar until smooth and fluffy, about 2 minutes.
Blend in sour cream, lemon juice, and vanilla until silky.
Whip cold heavy cream to stiff peaks. Gently fold into cheesecake mixture.
Spread filling over crust and smooth the top. Cover and chill 4–6 hours.
Spoon cherry pie filling over the set cheesecake. Slice and serve cold.