A member of the nursing team contacted the RSPCA after the tiny animal was spotted in distress.
A check up at Wildlife Aid in Leatherhead showed it was suffering from dehydration, but he has now been released back into the wild.
If people find fox cubs in predicaments like this they should phone the RSPCA on the emergency line number 0300 1234 999.
If the cubs are not injured or trapped it is best to monitor them for 24 hours in case their mother returns, which is the best chance for their survival.