Environment: Windows 7 Professional SP1 64-bit, .NET 3.5.1, 4.5.2, SEP 14 MP2
Has anyone noticed any issues with the 2018-01 .NET Security Only Update (or the 2018-01 .NET Rollup) specifically KB4054172 which is the security patch containted the the 2018-01 .NET Security Update, et. al.? https://support.microsoft.com/en-us/help/4055269/security-only-update-for-net-framework-3-5-1-4-5-2-4-6-4-6-1-4-6-2-4-7
We don't know as of yet if it impacts SEP 14 MP2. There is language in the Microsoft KB4055269 referencing the registry entries to be provided by the antivirus vendor similar to that needed to install the Meltdown/Spectre patch in the Windows 2018-01 Security Only (and rollup) for Windows. We are assuming that the potential is there to cause issues with the .NET patch like the Windows Meltdown/Spectre patch(es).
The current issue that we have specifically is that after installing KB4054172 a machine won't successfully RESTART. It will go through Logoff and Shutdown and then go dormant, like it was in Sleep mode, but unable to wake up. The only way to revive a machine is to manually power it off and back on. We've checked the KB4054172 install logs and don't see any installation errors.
We are unaware of any SEP issues at this point. We stopped pushing out the .NET maintenance until we can figure out what's going on.
KB4056897 containing the Meltdown and Spectre patch is installed with no apparent issues, SEP 14 MP2 or otherwise.