Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1018 There is an overflow in MP4 AMF parsing. To reproduce, put the attached files on a server and visit http://127.0.0.1/LoadMP4.swf?file=unsigned.mp4. Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/41420.zip