I ran the detection tool on my 2016 - High C laptop, and it said it was vulnerable
Though, Apple doesn't do anything specific to the laptops...so any of the affected CPUs would be just as vulnerable on the Mac.
6th, 7th & 8th Generation Intel Core Processor Family
Intel Xeon Processor E3-1200 v5 & v6 Product Family
Intel Xeon Processor Scalable Family
Intel Xeon Processor W Family
Intel Atom C3000 Processor Family
Apollo Lake Intel Atom Processor E3900 series
Apollo Lake Intel Pentium
Celeron N and J series Processors
INTEL-SA-00086 Detection Tool
Copyright(C) 2017, Intel Corporation, All rights reserved
Application Version: 1.0.0.128
Scan date: 2017-11-21 17:23:19 GMT
*** Host Computer Information ***
Name: <>
Manufacturer: N/A
Model: N/A
Processor Name: N/A
OS Version: (17.3.0)
*** Risk Assessment ***
Detection Error: This system may be vulnerable, please install the Intel(R) MEI/TXEI driver (available from your system manufacturer).
For more information refer to the SA-00086 Detection Tool Guide or the Intel security advisory Intel-SA-00086 at the following link:
https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00086&languageid=en-fr
Did you run the detection tool on a virtual machine or are you running Windows on your Mac? I run OS High Sierra, but there is no detection tool available for Mac. Thanks!