Improper Control of Generation of Code ('Code Injection')
A certain ActiveX control in sapi.dll (aka the Speech API) in Speech Components in Microsoft Windows Vista, when the Speech Recognition feature is enabled, allows user-assisted remote attackers to delete arbitrary files, and conduct other unauthorized activities, via a web page with an embedded sound object that contains voice commands to an enabled microphone, allowing for interaction with Windows Explorer.
CWE-94 - Code Injection
Code injection is a type of vulnerability that allows an attacker to execute arbitrary code. This vulnerability fully compromises the machine and can cause a wide variety of security issues, such as unauthorized access to sensitive information, manipulation of data, denial of service attacks etc. Code injection is different from command injection in the fact that it is limited by the functionality of the injected language (e.g. PHP), as opposed to command injection, which leverages existing code to execute commands, usually within the context of a shell.