CVE-2018-3646 in ESXi 6.7.0 Update 3 (Build 15160138)

Hey there

Im setting up my first private ESXi for testing purposes..

I have installed ESXi 6.7.0U3 (Build 15160138) with a custom ISO (Realtek driver)..

I'm now getting this message:

and I am honestly not sure what I have to do now.. I've read through the article but I have no clue how to update or if I even have to? (6.7.0U3 is pretty new compared to the CVE.. isn't this fix already integrated in this version?)

Would be happy about some help