KLA10676
Multiple vulnerabilities in Microsoft JScript and VBScript

Multiple serious vulnerabilities have been found in Microsoft JScript and VBScript. Malicious users can exploit these vulnerabilities to bypass security restrictions, execute arbitrary code or obtain sensitive information.

Below is a complete list of vulnerabilities

1. Improperly handling objects in memory can be exploited remotely via a specially designed website to execute arbitrary code;
2. Lack of ASLR restrictions can be exploited remotely via a specially designed website to bypass security restrictions;
3. Improper memory content disclosure can be exploited locally via memory manipulations to obtain sensitive information.

Technical details

Vulnerability (1) related to way in which memory objects handling at Internet Explorer.

Microsoft JScript from 5.7 through 5.8
Microsoft VBScript from 5.7 through 5.8

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

CVE-2015-2482
CVE-2015-6055
CVE-2015-6059
CVE-2015-6052

3089659
3094995
3094996
3093983

Public exploits exist for this vulnerability.