Use after free in Portals in Google Chrome prior to 94.0.4606.61 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html
Source: MITRE
Published: 2021-10-08
Updated: 2022-03-30
Type: CWE-416
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 9.6
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Impact Score: 6
Exploitability Score: 2.8
Severity: CRITICAL