The normal crosswind limit for the B767 I fly is 35kts in VMC and manually flown and it has more than enough control capability to handle that. I've done a couple of landings recently right on the crosswind limit without any problems.
For an autoland in VMC the limit is 25kts and I've seen it demonstrated on a revenue sector years ago and it worked just fine.
For an autoland in Lo Vis conditions the limit is 10kts.
The aeroplane decrabs and drops a wing if it needs to in an autoland.
The B747-400 operates the same way though I can't remember the limit winds.
Dunno about the other Boeings or Airbii.
Regards,
BH.