Microsoft Internet Explorer Cumulative Security Update

Last Update Date: 15 Jun 2016 17:36 Release Date: 15 Jun 2016 3808 Views

RISK: High Risk

TYPE: Clients - Browsers

Microsoft Internet Explorer Memory Corruption Vulnerabilities
Remote code execution vulnerabilities exist when Internet Explorer improperly accesses objects in memory. The vulnerabilities could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerabilities could gain the same user rights as the current user. If the current user is logged on with administrative user rights, the attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
Multiple Scripting Engine Memory Corruption Vulnerabilities
Multiple remote code execution vulnerabilities exist in the way that the JScript 9, JScript, and VBScript engines render when handling objects in memory in Internet Explorer. The vulnerabilities could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerabilities could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerabilities could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
Internet Explorer XSS Filter Vulnerability
A remote code execution vulnerability exists when the Internet Explorer XSS Filter does not properly validate JavaScript under specific conditions. An attacker who exploited the vulnerability could run arbitrary code with medium-integrity level privileges (the permissions of the current user).
WPAD Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists in Microsoft Windows when the Web Proxy Auto Discovery (WPAD) protocol falls back to a vulnerable proxy discovery process. An attacker who successfully exploited this vulnerability could bypass security and gain elevated privileges on a targeted system.