Skip to content
Fencer Vulns
medium 6.5

CVE-2020-16027 json

Insufficient policy enforcement in developer tools in Google Chrome prior to 87.0.4280.66 allowed an attacker who convinced a user to insta…

published 2021-01-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-7994

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

Insufficient policy enforcement in developer tools in Google Chrome prior to 87.0.4280.66 allowed an attacker who convinced a user to install a malicious extension to obtain potentially sensitive information from the user's disk via a crafted Chrome Extension.

Patch / fix

  • Google Chrome 87.0.4280.66
  • chromium Debian 14, Debian 13, Debian 12 87.0.4280.88-0.1

debian advisories DEBIAN-CVE-2020-16027

  • chromium-browser Ubuntu 16.04 LTS 87.0.4280.66-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 87.0.4280.66-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2020-16027

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • chromium openSUSE Tumbleweed 93.0.4577.82-1.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 15 SP1 87.0.4280.66-bp151.3.137.1
  • chromium openSUSE Leap 15.1 87.0.4280.66-lp151.2.156.1
  • chromium Package Hub 15 SP2 87.0.4280.66-bp152.2.38.1
  • chromium openSUSE Leap 15.2 87.0.4280.66-lp152.2.51.1
  • chromium Package Hub 15 SP2 87.0.4280.66-bp152.2.32.1
  • chromium Package Hub 15 SP1 87.0.4280.66-bp151.3.131.1

opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2020:2055-1openSUSE-SU-2020:2032-1openSUSE-SU-2020:2026-1openSUSE-SU-2020:2021-1

  • chromium Arch Linux 87.0.4280.66-1

arch linux advisories AVG-1277

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-16027 updated cvss 6.5

chromium-browser: Insufficient policy enforcement in developer tools

  • Red Hat Enterprise Linux 6 chromium-browser
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.96% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Google Chrome

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.