Multiple serious vulnerabilities have been found in Microsoft JScript and VBScript. Malicious users can exploit these vulnerabilities to execute arbitrary code.

Technical details

Improper objects handling in memory in Internet Explorer can be exploited remotely via a specially designed web content.

Microsoft JScript and VBScript

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

3155413
3158991

The following public exploits exists for this vulnerability:

https://www.exploit-db.com/exploits/40118