CP.........CN tracking numbers are surface mail, it could take months to arrive in France. Status won't be updated again until it reaches France and the postal service there scans it.

Surface mail means it goes by some means other than air -- boat, rail, or truck, usually boat. It could take up to 6 months to arrive. For most things you wouldn't use such a slow shipment method unless they are very heavy.

If this is someone selling through AliExpress, eBay, etc, this is a bit of a problem, because buyer protection expires well before the item is likely to arrive. You may have to ask the seller to extend the buyer protection period or open a dispute before it expires.

I wouldn't worry about a surface mail parcel until at least 4 months have passed, probably more like 6. It takes 2 months to get surface mail from China to Bangladesh, let alone to France.

If it's something you bought via eBay, AliExpress, etc, you should either extend buyer protection or file a dispute. Again, unless it's something very big or heavy, sellers shouldn't be using such a slow shipping method.