Introduction Hi, I am Trung (xikhud). Last month, I joined Qrious Secure team as a new member, and my first target was to find and reproduce the security bugs that @bienpnn used at the Pwn2Own Vancouver 2023 to escape the VirtualBox VM. Since VirtualBox is an open-source software, I can just download the source code from their homepage. The version of VirtualBox at the time of the Pwn2Own competition was 7.