Multiple serious vulnerabilities have been found in Microsoft Internet Explorer and Edge. Malicious users can exploit these vulnerabilities to execute arbitrary code or obtain sensitive information.

Below is a complete list of vulnerabilities

1. An improper memory objects handling can be exploited remotely via a specially designed content to execute arbitrary code or obtain sensitive information;
2. An improper page content handling can be exploited remotely via a specially designed content to obtain sensitive information;
3. An improper memory objects handling at Chakra JavaScript engine can be exploited remotely via a specially designed content to execute arbitrary code.

Technical details

To mitigate vulnerability №1 remove Microsoft EDGE from the PDF reader default file type association

To exploit vulnerability №2 an attacker must have valid logon credentials and be able to log on locally

Microsoft Internet Explorer versions 9 through 11
Microsoft Edge

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

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