The issue allows Remote Code Execution due to the mishandling of popmedia. This can be demonstrated by an unsafe command, such as "cat README.md", when a specific sequence is used. A popmedia control sequence can enable the malicious execution of executable file formats registered in the X desktop share MIME types. The sequence defers unknown file types to the handle unknown media() function, which executes xdg-open against the specified filename. This allows executable file formats with a registered shared MIME type to be executed. An attacker can achieve remote code execution by introducing an executable file and a plain text file containing the control sequence, for example, through a fake software project. When the control sequence is rendered, the executable file will be run.