Microsoft’s August Patch Tuesday offers nine security bulletins with five rated critical, resolving 34 security vulnerabilities in Internet Explorer (IE), Edge, and Office, as well as some serious high-profile security issues with Windows. Users of Microsoft Edge on Windows 10 systems are at a significant risk for remote code execution (RCE) attacks through a malicious PDF file. The vulnerability only affects Windows 10 users with Microsoft Edge set as the default browser, as the exploit would execute by simply by viewing a PDF online.
Source: https://thehackernews.com/2016/08/windows-patch-updates.html