Hi there,
I agree that KB article viewed in isolation does look a bit confusing, but full reading should focus on our security advisory instead - https://security.netapp.com/advisory/ntap-20160519-0001/ - it is fixed in ONTAP 9.1 and later for Clustered ONTAP, and we released Data ONTAP 8.2.5 with the fix in for 7-mode.
Hope this helps!