Multiple vulnerabilities were found in Microsoft Browsers. Malicious users can exploit these vulnerabilities to execute arbitrary code, obtain sensitive information, gain privileges, bypass security restrictions.

Below is a complete list of vulnerabilities:

1. A memory corruption vulnerability in Scripting Engine can be exploited remotely via specially crafted website to execute arbitrary code.
2. An information disclosure vulnerability in Microsoft Edge can be exploited remotely via specially crafted to obtain sensitive information.
3. A memory corruption vulnerability in Microsoft Edge can be exploited remotely via specially crafted website to obtain sensitive information.
4. A memory corruption vulnerability in Chakra Scripting Engine can be exploited remotely via specially crafted website to obtain sensitive information.
5. An elevation of privilege vulnerability in Microsoft Edge can be exploited remotely via specially crafted content to gain privileges.
6. A security feature bypass vulnerability in Scripting Engine can be exploited remotely to bypass security restrictions.

Internet Explorer 11
Internet Explorer 10
Internet Explorer 9
Microsoft Edge (EdgeHTML-based)
ChakraCore

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

4056894
4056888
4056890
4056893
4056891
4056892
4056896
4056895
4056568
4088782
4088787
4088786
4088779
4089187
4088878
4088877
4088875
4088776
4088876

The following public exploits exists for this vulnerability:

https://www.exploit-db.com/exploits/43491

https://www.exploit-db.com/exploits/43522

https://www.exploit-db.com/exploits/43710

https://www.exploit-db.com/exploits/44075

https://www.exploit-db.com/exploits/43715

https://www.exploit-db.com/exploits/43717

https://www.exploit-db.com/exploits/43723

https://www.exploit-db.com/exploits/43718

https://www.exploit-db.com/exploits/43720

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.