No, there appears to be not. Three women have accused BC of rape, assault, and/or harassment; and their accounts are problematic, to say the least (their stories have changed greatly over the years; they have testified under oath that the encounters did not happen or were consensual; their own friends and family have refuted their later accounts). I would not be surprised if there is a long list of extra-marital affairs, but though I personally find cheating yucky, it's not illegal - and its immorality depends, obviously, on HRC's view of things.