This disc is encrypted. The surprisingly elaborate password hint refers to “the CVE Identifier for a 2014 vulnerability that allowed arbitrary code execution in Firefox via a buffer overflow in a speech codec”. If you found this “CVE-ID” thingy, it’d probably be the password.
Searching in the Mitre for 2014 and firefox you get very few result back and finding one which has something to do with the buffer overflow 😀
So here is our flag