CVE-2021-4052: Use after free in web apps. CVE-2021-4053: Use after free in UI. CVE-2021-4079: Out of bounds write in WebRTC. CVE-2021-4054: Incorrect security UI in autofill. CVE-2021-4078: Type confusion in V8. CVE-2021-4055: Heap buffer overflow in extensions. CVE-2021-4056: Type Confusion in loader. CVE-2021-4057: Use after free in file API. CVE-2021-4058: Heap buffer overflow in ANGLE. CVE-2021-4059: Insufficient data validation in loader. CVE-2021-4061: Type Confusion in V8. CVE-2021-4062: Heap buffer overflow in BFCache. CVE-2021-4063: Use after free in developer tools. CVE-2021-4064: Use after free in screen capture. CVE-2021-4065: Use after free in autofill. CVE-2021-4066: Integer underflow in ANGLE. CVE-2021-4067: Use after free in window manager. CVE-2021-4068: Insufficient validation of untrusted input in new tab page.