Zero-day vulnerability in Microsoft Office

Memory corruption
CVE-2015-1642

The vulnerability was discovered by Yong Chuan, Koh of MWR Labs.

Vulnerability details

Advisory: SB2015081102 - Multiple vulnerabilities in Microsoft Office

Vulnerable component: Microsoft Office

CVE-ID: CVE-2015-1642

CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Description:

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.