Depends on what hardware it is. Below are some references -
You clearly didn't look very hard. Please read the article in my signature as well.
Thanks Supreet / Daphnissov,
We have the latest SPP on the blades 2018.3.0, as recommended by VMware Tech support want to to upgrade the nic firmware inside the OS. The HPE should provide the customized image with the supported nic firmware etc.,
here in my case vmware and HPE want us to upgrade the nic firmware, to fix configured speed mode to 10000Mb Full Duplex.
The current SPP version is 2018.11.0, i.e. 3 versions later than the one you mentioned (see Service Pack for ProLiant | Hewlett Packard Enterprise).
Unless there are reasons not to upgrade to the current release, I'd suggest you take a look at the new version's release notes, check the compatibility/interoperability with your hardware (Enclosure, Interconnect modules, Servers, ...), and consider an upgrade using the latest SPP.
If you only want/need to update the NICs, you should find the specific driver on the HPE support web site, along with the update steps in the "Installation instructions" tab (or within the downloaded driver package).