What’s Vulnerable › Vulnerabilities

CVE-2020-16017: Google Chrome Use-After-Free Vulnerability

• Severity: critical (CVSS 9.6 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2021-11-03
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-01-08 · updated 2026-06-17
• Weakness: CWE-416

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.

Affected products

• Google Chrome: before 86.0.4240.198 — fixed in 86.0.4240.198

How to fix

Upgrade to a fixed version: Google Chrome 86.0.4240.198. Check the vendor advisory for mitigations.

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

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