CVE-2020-16017
Published 2021-01-08 · Updated 2026-06-17 · Source chrome-cve-admin@google.com
Summary
CVE-2020-16017 is a critical-severity (CVSS 9.6) vulnerability in Google Chrome. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA does not currently list it as used in ransomware campaigns. Google has 76 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.
All 76 known-exploited Google vulnerabilities →Description
Use after free in site isolation in Google Chrome prior to 86.0.4240.198 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Google — Chrome
Name: Google Chrome Use-After-Free Vulnerability
Date added: 2021-11-03 · Due: 2022-05-03
Required action: Apply updates per vendor instructions.
References
- https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_11.html
- https://crbug.com/1146709
- https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_11.html
- https://crbug.com/1146709
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-16017

