We're going to need more info from you, your pic just doesn't show enough...
It looks like a vine with a fuzzy stem and white spots on the leaf...
I was leaning towards smilax but that's not it after looking better
How big is it?
Is it a vine?
What do you see if you dig down at the base?
Does is have any scent? Maybe if you crush some of it.
Is it growing fast?
Where's it located? Sun, shade?
Do your best to describe it!
They say a pic is worth a thousand words, but a pic with a few words can tell a whole story!
I'm quite interested to see what that is!