In theory someone can try and guess your 24 words seed, put them in the correct order and generate a new wallet with those words stealing your funds.
But that is very, very, very... unlikely to ever happen. Besides your seed words you can create a 25th word as an additional security feature. A password. In case someone stole your seed they would also need that password to gain access to your assets.

I wouldn't worry about that though. I am not good with math but the possibility to arrange 24 random words in the correct order isn't a concern.