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CVE-2020-6418

Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to...

8.8 HighIn KEVPublic exploitFix available

Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

78.8%Up 54.2 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
CVE-2020-6418
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-843
Updated
2026-11-02
CVE List 8.8

Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
CVE-2020-6418
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-843
Updated
2026-11-02
EUVDEUVD-2020-27568 8.8

Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
EUVD-2020-27568
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-495j-4jmx-mgrx 8.8

Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to...

Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
GHSA-495j-4jmx-mgrx
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-843
Updated
2026-11-02
CISA KEV No score

Google Chromium V8 Type Confusion Vulnerability

Google Chromium V8 Engine contains a type confusion vulnerability allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Record
CVE-2020-6418
Weakness
CWE-843
Updated
2026-11-02
OSV 8.8

Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
CVE-2020-6418
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 8 moreShow less
OSVDEBIAN-CVE-2020-6418 8.8

Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
DEBIAN-CVE-2020-6418
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2020:0738 8.8

Red Hat Security Advisory: chromium-browser security update

Record
RHSA-2020:0738
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2020-6418 8.8

Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record
UBUNTU-CVE-2020-6418
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVMGASA-2020-0123 No score

Updated chromium-browser-stable packages fix security vulnerabilities

Chromium-browser 80.0.3987.122 fixes security issues:

Multiple flaws were found in the way Chromium 79.0.3945.130 processes various types of web content, where loading a web page containing malicious content could cause Chromium to crash, execute arbitrary code, or disclose sensitive information. (CVE-2020-6381, CVE-2020-6382, CVE-2020-6383, CVE-2020-6384, CVE-2020-6385, CVE-2020-6386, CVE-2020-6387, CVE-2020-6388, CVE-2020-6389, CVE-2020-6390, CVE-2020-6391, CVE-2020-6392, CVE-2020-6393, CVE-2020-6394, CVE-2020-6395, CVE-2020-6396, CVE-2020-6397, CVE-2020-6398, CVE-2020-6399, CVE-2020-6400, CVE-2020-6401, CVE-2020-6402, CVE-2020-6403, CVE-2020-6404, CVE-2020-6405, CVE-2020-6406, CVE-2020-6407, CVE-2020-6408, CVE-2020-6409, CVE-2020-6410, CVE-2020-6411, CVE-2020-6412, CVE-2020-6413, CVE-2020-6414, CVE-2020-6415, CVE-2020-6416, CVE-2020-6418, CVE-2019-18197, CVE-2019-19923, CVE-2019-19925, CVE-2019-19926)

Upstream chromium 80.0.3987.122 also includes a fix for an integer overflow issue in ICU. Since the chromium-browser-stable package is linked against the icu packages instead of using the ICU source code bundled with chromium upstream, this issue is fixed in the icu package.

Record
MGASA-2020-0123
Updated
2026-11-02
OSVopenSUSE-SU-2020:0245-1 No score

Security update for chromium

This update for chromium fixes the following issues:

Chromium was updated to version 80.0.3987.122 (bsc#1164828).

Security issues fixed:

  • CVE-2020-6418: Fixed a type confusion in V8 (bsc#1164828).
  • CVE-2020-6407: Fixed an OOB memory access in streams (bsc#1164828).
  • Fixed an integer overflow in ICU (bsc#1164828).

Non-security issues fixed:

  • Dropped the sandbox binary as it should not be needed anymore (bsc#1163588).
Record
openSUSE-SU-2020:0245-1
Updated
2026-11-02
OSVopenSUSE-SU-2020:0259-1 No score

Security update for chromium

This update for chromium fixes the following issues:

Chromium was updated to version 80.0.3987.122 (bsc#1164828).

Security issues fixed:

  • CVE-2020-6418: Fixed a type confusion in V8 (bsc#1164828).
  • CVE-2020-6407: Fixed an OOB memory access in streams (bsc#1164828).
  • Fixed an integer overflow in ICU (bsc#1164828).

Non-security issues fixed:

  • Dropped the sandbox binary as it should not be needed anymore (bsc#1163588).
Record
openSUSE-SU-2020:0259-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10681-1 No score

chromedriver-93.0.4577.82-1.1 on GA media

These are all security issues fixed in the chromedriver-93.0.4577.82-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10681-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:12948-1 No score

ungoogled-chromium-113.0.5672.92-1.1 on GA media

These are all security issues fixed in the ungoogled-chromium-113.0.5672.92-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12948-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
chromium
Debian:12
 before 80.0.3987.122-1
80.0.3987.122-1
chromium
Debian:13
 before 80.0.3987.122-1
80.0.3987.122-1
chromium
Debian:14
 before 80.0.3987.122-1
80.0.3987.122-1
chromium
Debian:10
From an advisory covering 46 CVEs
 before 80.0.3987.132-1~deb10u1, plus listed versions
73.0.3683.75-174.0.3729.108-175.0.3770.10-175.0.3770.80-175.0.3770.90-1
Show 20 moreShow less
76.0.3809.100-176.0.3809.100-1~deb10u176.0.3809.62-176.0.3809.71-176.0.3809.87-176.0.3809.87-278.0.3904.108-178.0.3904.108-1~deb10u178.0.3904.87-178.0.3904.97-178.0.3904.97-1~deb10u179.0.3945.130-179.0.3945.130-1~deb10u179.0.3945.130-279.0.3945.56-179.0.3945.79-180.0.3987.106-180.0.3987.116-180.0.3987.122-180.0.3987.122-2
80.0.3987.132-1~deb10u1
chromium-browser-stable
Mageia:7
From an advisory covering 41 CVEs
 before 80.0.3987.122-1.mga7
80.0.3987.122-1.mga7
icu
Mageia:7
From an advisory covering 41 CVEs
 before 63.1-1.2.mga7
63.1-1.2.mga7
chromium-browser
Red Hat:rhel_extras:6
From an advisory covering 6 CVEs
 before 0:80.0.3987.122-1.el6_10
0:80.0.3987.122-1.el6_10
chromium-browser-debuginfo
Red Hat:rhel_extras:6
From an advisory covering 6 CVEs
 before 0:80.0.3987.122-1.el6_10
0:80.0.3987.122-1.el6_10
chromium-browser
Ubuntu:16.04:LTS
 before 80.0.3987.149-0ubuntu0.16.04.1, plus listed versions
45.0.2454.101-0ubuntu1.120147.0.2526.73-0ubuntu1.121847.0.2526.106-0ubuntu1.122148.0.2564.82-0ubuntu1.122248.0.2564.116-0ubuntu1.1229
Show 45 moreShow less
49.0.2623.87-0ubuntu1.123249.0.2623.108-0ubuntu1.123350.0.2661.102-0ubuntu0.16.04.1.123751.0.2704.79-0ubuntu0.16.04.1.124252.0.2743.116-0ubuntu0.16.04.1.125053.0.2785.143-0ubuntu0.16.04.1.125453.0.2785.143-0ubuntu0.16.04.1.125755.0.2883.87-0ubuntu0.16.04.126356.0.2924.76-0ubuntu0.16.04.126857.0.2987.98-0ubuntu0.16.04.127658.0.3029.81-0ubuntu0.16.04.127758.0.3029.96-0ubuntu0.16.04.127958.0.3029.110-0ubuntu0.16.04.128159.0.3071.109-0ubuntu0.16.04.128959.0.3071.109-0ubuntu0.16.04.129160.0.3112.78-0ubuntu0.16.04.129360.0.3112.113-0ubuntu0.16.04.129861.0.3163.79-0ubuntu0.16.04.130061.0.3163.100-0ubuntu0.16.04.130662.0.3202.62-0ubuntu0.16.04.130862.0.3202.75-0ubuntu0.16.04.131362.0.3202.89-0ubuntu0.16.04.131562.0.3202.94-0ubuntu0.16.04.131763.0.3239.84-0ubuntu0.16.04.163.0.3239.132-0ubuntu0.16.04.164.0.3282.119-0ubuntu0.16.04.164.0.3282.140-0ubuntu0.16.04.164.0.3282.167-0ubuntu0.16.04.165.0.3325.181-0ubuntu0.16.04.166.0.3359.139-0ubuntu0.16.04.366.0.3359.181-0ubuntu0.16.04.167.0.3396.99-0ubuntu0.16.04.268.0.3440.75-0ubuntu0.16.04.168.0.3440.106-0ubuntu0.16.04.169.0.3497.81-0ubuntu0.16.04.170.0.3538.67-0ubuntu0.16.04.170.0.3538.77-0ubuntu0.16.04.170.0.3538.110-0ubuntu0.16.04.171.0.3578.80-0ubuntu0.16.04.171.0.3578.98-0ubuntu0.16.04.172.0.3626.119-0ubuntu0.16.04.172.0.3626.121-0ubuntu0.16.04.173.0.3683.75-0ubuntu0.16.04.173.0.3683.86-0ubuntu0.16.04.174.0.3729.169-0ubuntu0.16.04.1
80.0.3987.149-0ubuntu0.16.04.1
chromium-browser
Ubuntu:18.04:LTS
 before 80.0.3987.149-0ubuntu0.18.04.1, plus listed versions
61.0.3163.100-0ubuntu1.137862.0.3202.62-0ubuntu0.17.10.138062.0.3202.89-0ubuntu1.138662.0.3202.94-0ubuntu1.138863.0.3239.84-0ubuntu1
Show 33 moreShow less
63.0.3239.108-0ubuntu164.0.3282.119-0ubuntu164.0.3282.140-0ubuntu164.0.3282.167-0ubuntu165.0.3325.146-0ubuntu165.0.3325.181-0ubuntu166.0.3359.139-0ubuntu0.18.04.366.0.3359.181-0ubuntu0.18.04.167.0.3396.99-0ubuntu0.18.04.168.0.3440.75-0ubuntu0.18.04.168.0.3440.106-0ubuntu0.18.04.169.0.3497.81-0ubuntu0.18.04.170.0.3538.67-0ubuntu0.18.04.170.0.3538.77-0ubuntu0.18.04.170.0.3538.110-0ubuntu0.18.04.171.0.3578.80-0ubuntu0.18.04.171.0.3578.98-0ubuntu0.18.04.172.0.3626.119-0ubuntu0.18.04.172.0.3626.121-0ubuntu0.18.04.173.0.3683.75-0ubuntu0.18.04.173.0.3683.86-0ubuntu0.18.04.174.0.3729.169-0ubuntu0.18.04.175.0.3770.90-0ubuntu0.18.04.175.0.3770.142-0ubuntu0.18.04.176.0.3809.87-0ubuntu0.18.04.176.0.3809.100-0ubuntu0.18.04.177.0.3865.90-0ubuntu0.18.04.178.0.3904.70-0ubuntu0.18.04.278.0.3904.97-0ubuntu0.18.04.178.0.3904.108-0ubuntu0.18.04.179.0.3945.79-0ubuntu0.18.04.179.0.3945.130-0ubuntu0.18.04.180.0.3987.87-0ubuntu0.18.04.1
80.0.3987.149-0ubuntu0.18.04.1
Show 4 moreShow less
Affected packages
PackageAffectedFixed
chromium
SUSE:Package Hub 12 SP3
From an advisory covering 2 CVEs
 before 80.0.3987.122-34.1
80.0.3987.122-34.1
chromium
openSUSE:Leap 15.1
From an advisory covering 2 CVEs
 before 80.0.3987.122-lp151.2.66.1
80.0.3987.122-lp151.2.66.1
chromium
openSUSE:Tumbleweed
From an advisory covering 1081 CVEs
 before 93.0.4577.82-1.1
93.0.4577.82-1.1
chromium
openSUSE:Tumbleweed
From an advisory covering 2310 CVEs
 before 113.0.5672.92-1.1
113.0.5672.92-1.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
MetasploitGoogle Chrome 80 JSCreate side-effect type confusion exploit2020-02-19
PoC in GitHubASkyeye/CVE-2020-64182020-03-03
Exploit-DBGoogle Chrome 80 - JSCreate Side-effect Type Confusion (Metasploit)2020-03-09
PoC in GitHubGoyotan/CVE-2020-6418-PoC2020-06-13
PoC in GitHubulexec/ChromeSHELFLoader2022-02-19
PoC in GitHubSivaPriyaRanganatha/CVE-2020-64182022-03-21

History

History
RecordedChangedSources
affected
exploitation, exploits
first indexedCVE List, EUVD, Exploit-DB, GitHub Advisories, CISA KEV, Metasploit, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-6418 is a high vulnerability (CVSS 8.8) in Google Chrome, published February 26, 2020. CISA lists it as known to be exploited, since November 3, 2021. EUVD reports exploitation since November 3, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 78.8%, the 99th percentile. Fixed in chromium 80.0.3987.122-1.

References

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This page doesn't list everything

Left out here: 9 versions and 2,163 references. The JSON record has them.

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