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Fencer Vulns
critical 9.6

CVE-2020-6461 in the critical feed json

Use after free in storage in Google Chrome prior to 81.0.4044.129 allowed a remote attacker who had compromised the renderer process to pot…

published 2020-05-21 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-27611

cvss
9.6
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

Use after free in storage in Google Chrome prior to 81.0.4044.129 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 81.0.4044.129
  • chromium Debian 14, Debian 13, Debian 12 83.0.4103.83-1

debian advisories DEBIAN-CVE-2020-6461

  • chromium-browser Ubuntu 16.04 LTS 81.0.4044.138-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 81.0.4044.138-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2020-6461

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 81.0.4044.129-1.el6_10

red hat advisories RHSA-2020:1981

  • opera openSUSE Leap 15.1 NonFree 68.0.3618.63-lp151.2.15.1

opensuse advisories openSUSE-SU-2020:0635-1

  • chromium Arch Linux 81.0.4044.129-1

arch linux advisories AVG-1143

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-2020-6461 updated cvss 8.8

chromium-browser: Use after free in storage

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 81.0.4044.129-1.el6_10 Red Hat Enterprise Linux HPC Node Supplementary (v. 6) chromium-browser 81.0.4044.129-1.el6_10 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 81.0.4044.129-1.el6_10 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 81.0.4044.129-1.el6_10
    fixed: vendor fix RHSA-2020:1981

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

1.21% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

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 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.