CVE-2011-0103

CVE-2011-0103 is a critical memory corruption vulnerability affecting Microsoft Excel 2002 SP3, 2003 SP3, Office 2004/2008 for Mac, and Open XML File Format Converter for Mac. This flaw allows remote attackers to execute arbitrary code or cause a denial of service through specially crafted Excel files. With a CVSS score of 9.3, it represents a severe risk, as an unauthenticated attacker can exploit it over a network with medium attack complexity, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity and EPSS score, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.