Begin by coooking the orzo to al dente according to the package directions. While the orzo is cooking, dice zucchini and cherry tomatoes. Cut the corn from the cob. Set aside.
Meanwhile, combine olive oil, vinegar, lemon juice, pepper, and salt in a liquid measuring cup. Whisk together.
Drain the orzo and rinse with cool water. Combine the orzo and vegetables in a large boil.
Whisk the dressing once more and then pour over the salad mixture. Stir to combine.
Chiffon the basil into the bowl and stir once more.
For the best flavor, allow the salad to chill for 2-3 hours.