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Fencer Intel
critical 9.6

CVE-2020-6466 in the critical feed json

Use after free in media in Google Chrome prior to 83.0.4103.61 allowed a remote attacker who had compromised the renderer process to potent…

published 6y ago modified 4mo ago also EUVD-2020-27616

cvss
9.6
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

Use after free in media in Google Chrome prior to 83.0.4103.61 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Patch / fix

  • Google Chrome 83.0.4103.61
  • chromium Debian 14, Debian 13, Debian 12 83.0.4103.83-1

debian advisories DEBIAN-CVE-2020-6466

  • chromium-browser Ubuntu 16.04 LTS 84.0.4147.105-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 83.0.4103.61-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2020-6466

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-browser RHEL 6 EXTRAS 83.0.4103.97-1.el6_10

red hat advisories RHSA-2020:2544

  • chromium openSUSE Tumbleweed 93.0.4577.82-1.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 15 SP1 83.0.4103.97-bp151.3.85.1
  • chromium openSUSE Leap 15.1 83.0.4103.97-lp151.2.96.1

opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2020:0832-1openSUSE-SU-2020:0823-1

  • chromium Arch Linux 83.0.4103.61-1

arch linux advisories AVG-1167

Is CVE-2020-6466 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2020-6466 updated cvss 8.8

chromium-browser: Use after free in media

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 83.0.4103.97-1.el6_10 Red Hat Enterprise Linux HPC Node Supplementary (v. 6) chromium-browser 83.0.4103.97-1.el6_10 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 83.0.4103.97-1.el6_10 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 83.0.4103.97-1.el6_10
    fixed: vendor fix RHSA-2020:2544

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

1.63% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Google Chrome

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel 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.