I tend to install all security updates and installed this one this morning.
It pertains to Adobe Flash Player see here:
Automatic Updates = Installed it automatically.
Did you encounter any problems with your computer after installing this update? Thanks
On my Windows 8 Desktop today I installed KB3033408 along with KB3024663 and KB2901982. Norton Internet Security (Comcast version) stopped working - would not scans and Norton Live Update fails. Also IE would not work, but Chrome and Foxfire ran fine.
I uninstalled these 3 updates, and Norton and IE are running fine. I haven't had time to determine which of the updates cause caused the problem.
I finally decided to install the update and no issues so far. I also checked those mentioned by GATechie and I haven't encountered any problems with those programs (Norton and IE were running fine).