This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Bitdefender Internet Security Internet Security 2018 prior to build 7.72918. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within pdf.xmd. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code under the context of SYSTEM. Was ZDI-CAN-4361.