Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective
https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html
http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.html