high 8.8

CVE-2020-16044 json

Use after free in WebRTC in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to potentially exploit heap corruption via a craf…

published 2021-02-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-8011

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits: 0; none known

Use after free in WebRTC in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to potentially exploit heap corruption via a crafted SCTP packet.

Patch / fix

fixed in 1 distros 7

Google Chrome 88.0.4324.96

debian ubuntu red hat suse opensuse alpine arch linux

firefox-esr Debian 14, Debian 13, Debian 12 78.6.1esr-1
thunderbird Debian 14, Debian 13, Debian 12 1:78.6.1-1

debian advisories DEBIAN-CVE-2020-16044

firefox Ubuntu 16.04 LTS 84.0.2+build1-0ubuntu0.16.04.1
firefox Ubuntu 18.04 LTS 84.0.2+build1-0ubuntu0.18.04.1
firefox Ubuntu 20.04 LTS 84.0.2+build1-0ubuntu0.20.04.1
thunderbird Ubuntu 18.04 LTS 1:78.8.1+build1-0ubuntu0.18.04.1
thunderbird Ubuntu 20.04 LTS 1:78.7.1+build1-0ubuntu0.20.04.1

ubuntu advisories UBUNTU-CVE-2020-16044

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

thunderbird RHEL 7 78.6.1-1.el7_9
thunderbird RHEL 8 78.6.1-1.el8_3
firefox RHEL 8 78.6.1-1.el8_3
firefox RHEL 7 78.6.1-1.el7_9
thunderbird RHEL 8.1 EUS 78.6.1-1.el8_1
thunderbird RHEL 8.2 EUS 78.6.1-1.el8_2
firefox RHEL 8.1 EUS 78.6.1-1.el8_1
firefox RHEL 8.2 EUS 78.6.1-1.el8_2

red hat advisories RHSA-2021:0160 RHSA-2021:0088 RHSA-2021:0087 RHSA-2021:0089 RHSA-2021:0052 RHSA-2021:0053

MozillaThunderbird SLE Workstation Extension 15 SP2 78.6.1-8.6.1
MozillaThunderbird SLE Workstation Extension 15 SP1 78.6.1-3.116.1
MozillaFirefox SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +15 more 78.6.1-112.42.1
MozillaFirefox SLE Module for Desktop Applications 15 SP1 78.6.1-3.125.1
MozillaFirefox SLE Module for Desktop Applications 15 SP2 78.6.1-8.23.1
MozillaFirefox SLES 11 SP4-LTSS 78.6.1-78.111.1

suse advisories SUSE-SU-2021:0123-1 SUSE-SU-2021:0122-1 SUSE-SU-2021:0080-1 SUSE-SU-2021:14595-1 SUSE-SU-2021:0072-1 SUSE-SU-2021:0071-1

firefox-esr openSUSE Tumbleweed 128.5.1-1.1
MozillaFirefox openSUSE Tumbleweed 92.0-1.2
MozillaThunderbird openSUSE Tumbleweed 91.1.1-1.1
chromium openSUSE Tumbleweed 93.0.4577.82-1.1
chromium openSUSE Tumbleweed 113.0.5672.92-1.1
libqt5-qtwebengine Package Hub 15 SP2 5.15.3-bp152.3.3.1
libqt5-qtwebengine openSUSE Leap 15.2 5.15.3-lp152.3.3.4
chromium Package Hub 15 SP2 88.0.4324.96-bp152.2.53.1

opensuse advisories openSUSE-SU-2024:14572-1 openSUSE-SU-2024:10600-1 openSUSE-SU-2024:10601-1 openSUSE-SU-2024:10681-1 openSUSE-SU-2024:12948-1 openSUSE-SU-2021:1016-1

firefox Alpine 3.23, Alpine 3.22, Alpine 3.21 +9 more 84.0.2-r0
librewolf Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 84.0.2-r0
firefox-esr Alpine 3.23, Alpine 3.22, Alpine 3.21 +9 more 78.6.1-r0
thunderbird Alpine 3.23, Alpine 3.22, Alpine 3.21 +5 more 78.6.1-r0
qt5-qtwebengine Alpine 3.23, Alpine 3.22, Alpine 3.21 +7 more 5.15.3_git20200401-r0

alpine advisories ALPINE-CVE-2020-16044

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

firefox Arch Linux 84.0.2-1
thunderbird Arch Linux 78.6.1-1
chromium Arch Linux 88.0.4324.96-1
vivaldi Arch Linux 3.6.2165.36-1

arch linux advisories AVG-1413 AVG-1440 AVG-1477 AVG-1478

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-2020-16044 updated 2026-11-07 cvss 8.8

Mozilla: Use-after-free write when handling a malicious COOKIE-ECHO SCTP chunk

Red Hat Enterprise Linux 6 firefox, thunderbird
affected: no fix planned “Out of support scope”
Red Hat Enterprise Linux AppStream (v. 8) firefox 78.6.1-1.el8_3, thunderbird 78.6.1-1.el8_3
fixed: vendor fix RHSA-2021:0052
Red Hat Enterprise Linux AppStream EUS (v. 8.1) firefox 78.6.1-1.el8_1, thunderbird 78.6.1-1.el8_1
fixed: vendor fix RHSA-2021:0054
Red Hat Enterprise Linux AppStream EUS (v. 8.2) firefox 78.6.1-1.el8_2, thunderbird 78.6.1-1.el8_2
fixed: vendor fix RHSA-2021:0055
Red Hat Enterprise Linux Client (v. 7) firefox 78.6.1-1.el7_9, thunderbird 78.6.1-1.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) firefox 78.6.1-1.el7_9 Red Hat Enterprise Linux Server (v. 7) firefox 78.6.1-1.el7_9 Red Hat Enterprise Linux Server Optional (v. 7) firefox 78.6.1-1.el7_9, thunderbird 78.6.1-1.el7_9 Red Hat Enterprise Linux Workstation (v. 7) firefox 78.6.1-1.el7_9, thunderbird 78.6.1-1.el7_9 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 78.6.1-1.el7_9
fixed: vendor fix RHSA-2021:0053

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

1.32% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

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

CWE-416 Use After Free
CWE-787 Out-of-bounds Write

Technology feeds

Google Chrome rss critical rss

References

chromereleases.googleblog.com /2021/01/stable-channel-update-for-desktop_19.html
release-notes, vendor-advisory
crbug.com /1163228
permissions-required, third-party-advisory

Sources

CVE List CVE-2020-16044
NVD CVE-2020-16044

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.

Summary