Google Project Zero pubished four Browser RCE 0day POC

https://googleprojectzero.github.io/0days-in-the-wild/rca.html

https://googleprojectzero.github.io/0days-in-the-wild/0day-RCAs/2021/CVE-2021-21166.html

https://googleprojectzero.github.io/0days-in-the-wild/0day-RCAs/2021/CVE-2021-30551.html

https://googleprojectzero.github.io/0days-in-the-wild/0day-RCAs/2021/CVE-2021-33742.html

https://googleprojectzero.github.io/0days-in-the-wild/0day-RCAs/2021/CVE-2021-1879.html