In light of the current kashrut reality, it would be assur. Is Cholov Stam one big Cholov Scam? Yes
Over the past fifteen years, liquid Chalav stam has become possibly chalav from a triefe due to the widespread use of displaced abomasums operations that nick the intestines and other body parts. Poskim who share this view are R Elyashiv, R Kamiensky, R Rubin, R Malinowitz, and R Wosner poskin that the cholov stam milk supplies in the US and many European countries are unreliable.