CVE-2015-1623

Microsoft Internet Explorer 11 permite a atacantes remotos ejecutar código arbitrario o causar una denegación de servicio (corrupción de memoria) a través de un sitio web manipulado, también conocido como 'vulnerabilidad de la corrupción de memoria de Internet Explorer,' una vulnerabilidad diferente a CVE-2015-0056 y CVE-2015-1626.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The vulnerability relates to how Internet Explorer processes document fragments. By using script to move DOM elements into a document fragment and then manipulating that fragment, an attacker can force a CMarkup object in memory to be reused after it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process.