Of these 16 security errors, 15 are rated high severity. Nearly half of them are use-after-free bugs affecting various components of the browser.
The most severe of these issues affects the web apps component. Tracked as CVE-2021-4052, it was reported by Wei Yuan of MoyunSec VLab, who received a $15,000 bug bounty payout for the finding.
Next in line is CVE-2021-4053, a security hole in Chrome’s UI component, which earned the reporting researcher $10,000.