From the Bleeping Computer web site:
“Microsoft has declined to patch a security bug Cisco Talos researchers discovered in the Edge browser, claiming the reported issue is by design. Apple and Google patched a similar flaw in Safari (CVE-2017-2419) and Chrome (CVE-2017-5033), respectively.
You can read more in the Bleeping Computer web site at: http://bit.ly/2vSmNmd.
I hope you are not using Microsoft Edge to read this story!