The vulnerability was discovered by Yong Chuan, Koh of MWR Labs.
Advisory: SB2015081102 - Multiple vulnerabilities in Microsoft Office
Vulnerable component: Microsoft Office
CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C
CWE-ID: CWE-119 - Memory corruption
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error when processing Microsoft Office documents. A remote unauthenticated attacker can create a specially crafted Office document, trick the victim into opening it and execute arbitrary code on the target system with privileges of the current user.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note: this vulnerability is being actively exploited.