A smartscreen bypass flaw was found in the downloads component of the Chromium browser.
Created chromium tracking bugs for this issue:
Affects: fedora-all [bug 1568801]
Affects: epel-7 [bug 1568800]
SmartScreen is a feature of the Microsoft Windows operating system / Microsoft Windows Defender, hence this flaw would not be relevant to non-Windows builds of Chrome / Chromium.