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Fencer Vulns
high 8.8

CVE-2020-6427 json

Use after free in audio in Google Chrome prior to 80.0.3987.149 allowed a remote attacker to potentially exploit heap corruption via a craf…

published 2020-03-20 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-27577

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

Use after free in audio in Google Chrome prior to 80.0.3987.149 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Patch / fix

  • Google Chrome 80.0.3987.149
  • chromium Debian 14, Debian 13, Debian 12 80.0.3987.149-1

debian advisories DEBIAN-CVE-2020-6427

  • chromium-browser Ubuntu 16.04 LTS 80.0.3987.149-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 80.0.3987.149-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2020-6427

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 80.0.3987.149-1.el6_10

red hat advisories RHSA-2020:1270

  • chromium openSUSE Tumbleweed 93.0.4577.82-1.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 15 SP1 80.0.3987.149-bp151.3.63.3
  • chromium Package Hub 12 SP3, openSUSE Leap 15.1 80.0.3987.149-41.1

opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2020:0389-1openSUSE-SU-2020:0365-1

  • chromium Alpine 3.11 80.0.3987.149-r0

alpine advisories ALPINE-CVE-2020-6427

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • chromium Arch Linux 80.0.3987.149-1

arch linux advisories AVG-1118

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-2020-6427 updated cvss 8.8

chromium-browser: Use after free in audio

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 80.0.3987.149-1.el6_10 Red Hat Enterprise Linux HPC Node Supplementary (v. 6) chromium-browser 80.0.3987.149-1.el6_10 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 80.0.3987.149-1.el6_10 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 80.0.3987.149-1.el6_10
    fixed: vendor fix RHSA-2020:1270

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

2.45% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • crbug.com https://crbug.com/1055788 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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.