Main Vulnerability Database Vulnerabilities #VU5562

Memory corruption in Microsoft Excel and Microsoft Excel for macOS - CVE-2015-2520

Published: January 31, 2017 / Updated: September 14, 2018

Vulnerability identifier: #VU5562

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2015-2520

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when processing Excel documents. A remote attacker can create a specially crafted Excel 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.

Affected software

Microsoft Excel
Microsoft Excel for macOS

How to mitigate CVE-2015-2520

Install update from vendor's website.

Links to Public Exploits and PoC-codes

Exploit #969 - Microsoft Office 2007 - BIFFRecord Length Use-After-Free (March 18, 2020)

External References

https://technet.microsoft.com/en-us/library/security/ms15-099