https://support.microsoft.com/en-us/topic/ms09-043-vulnerabilities-in-microsoft-office-web-components-could-allow-remote-code-execution-42b1d53b-ea68-c415-f40f-22de82f9df91
Resolves vulnerabilities in Office Web Components that could allow remote code execution if a user viewed a specially crafted Web page.
office web componentsvulnerabilitiesmicrosoftcouldallow