Zero-day vulnerability in Microsoft Office

Memory corruption
CVE-2015-2545

CVE-2015-2545 fuels around 17% of attacks in Microsoft Office.

Used to target organisations in China.

Vulnerability details

Advisory: SB2015090801 - Multiple vulnerabilities in Microsoft Office

Vulnerable component: Microsoft Office

CVE-ID: CVE-2015-2545

CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/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 parsing malformed images. A remote attacker can create a file containing a specially crafted image file, trick the victim into opening it, cause memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of this vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

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