### [CVE-2021-4057](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4057) ![](https://img.shields.io/static/v1?label=Product&message=Chrome&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=%3C%2096.0.4664.93%20&color=brighgreen) ![](https://img.shields.io/static/v1?label=Vulnerability&message=Use%20after%20free&color=brighgreen) ### Description Use after free in file API in Google Chrome prior to 96.0.4664.93 allowed a remote attacker who had compromised the renderer process to potentially exploit heap corruption via a crafted HTML page. ### POC #### Reference - http://packetstormsecurity.com/files/165486/Chrome-storage-BlobURLStoreImpl-Revoke-Heap-Use-After-Free.html #### Github No PoCs found on GitHub currently.