Schizophragma hydra 'Moonlight' ?
Moonlight' is a beautifully variegated vine that possesses bold, silvery green foliage with deeper green veins. A.k.a. False Hydrangea vine. Very similar appearance to the true Climbing Hydrangea, but tends to produce blooms faster and grow more vigorous. Prune as needed in early spring. It will cling to any structure, wall, fence, tree, etc.