Ferguson, 24, hasn’t played for the Bravehearts for two years, and was called up to the England Knights squad last year, although he didn’t feature. He did, however, play against Ireland in June this year.
Scotland stand-in coach Dave Rotheram said: “We’re thrilled to have Dale back with us. Last year he was called up by the England set-up and while we were disappointed to see him go, we did say he would be welcomed back and he remained eligible for Scotland.
“I spoke to Dale last week and he was very happy to come back into the Scotland fold. He gives us some top qualities wherever he plays: second row or loose forward.”
His Huddersfield team-mate Joe Wardle, who also debuted for Scotland in that tournament, has retained his place in the England Knights squad and is expected to line up against Scotland in Edinburgh on 28 October.