What is CVE-2020-16022?

CVE-2020-16022 is a high-severity vulnerability in Apple macOS. CVSS score: 8.8/10. Published 2021-01-08.

How severe is CVE-2020-16022?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Apple macOS

CVE-2020-16022

Insufficient policy enforcement in networking in Google Chrome prior to 87.0.4280.66 allowed a remote attacker to potentially bypass firewall controls via a crafted HTML page.

Published 2021-01-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (56.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000

Affected products

References

chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_17.html (Release Notes, Vendor Advisory)
crbug.com/1145680 (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2020-16022?: CVE-2020-16022 is a high-severity vulnerability in Apple macOS. CVSS score: 8.8/10. Published 2021-01-08.
How severe is CVE-2020-16022?: High severity. CVSS v3 base score is 8.8 out of 10.