chromium -- multiple vulnerabilities

Chrome Releases/Stable updates reports:

This release contains 4 security fixes, including:

[1245578] High CVE-2021-37974: Use after free in Safe Browsing.
Reported by Weipeng Jiang (@Krace) from Codesafe Team of
Legendsec at Qi’anxin Group on 2021-09-01
[1252918] High CVE-2021-37975: Use after free in V8. Reported by
Anonymous on 2021-09-24
[1251787] Medium CVE-2021-37976: Information leak in core.
Reported by Clement Lecigne from Google TAG, with technical
assistance from Sergei Glazunov and Mark Brand from Google
Project Zero on 2021-09-21

Google is aware the exploits for CVE-2021-37975 and CVE-2021-37976
exist in the wild.