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CVE-2020-6454

Use after free in extensions in Google Chrome prior to 81.0.4044.92 allowed an attacker who...

8.8 HighFix available

Use after free in extensions in Google Chrome prior to 81.0.4044.92 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

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

1.44%Up 0.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

Use after free in extensions in Google Chrome prior to 81.0.4044.92 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

Record
CVE-2020-6454
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-416
Updated
2026-11-02
CVE List No score

Use after free in extensions in Google Chrome prior to 81.0.4044.92 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

Record
CVE-2020-6454
Updated
2026-11-02
EUVDEUVD-2020-27604 No score

Use after free in extensions in Google Chrome prior to 81.0.4044.92 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

Record
EUVD-2020-27604
Updated
2026-11-03
GitHub AdvisoriesGHSA-c4c9-c8j5-4jjg 8.8

Use after free in extensions in Google Chrome prior to 81.0.4044.92 allowed an attacker who...

Use after free in extensions in Google Chrome prior to 81.0.4044.92 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

Record
GHSA-c4c9-c8j5-4jjg
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-416
Updated
2026-11-02
OSV 8.8

Use after free in extensions in Google Chrome prior to 81.0.4044.92 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

Record
CVE-2020-6454
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
OSVDEBIAN-CVE-2020-6454 8.8

Use after free in extensions in Google Chrome prior to 81.0.4044.92 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

Record
DEBIAN-CVE-2020-6454
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 7 moreShow less
OSVRHSA-2020:1487 8.8

Red Hat Security Advisory: chromium-browser security update

Record
RHSA-2020:1487
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2020-6454 8.8

Use after free in extensions in Google Chrome prior to 81.0.4044.92 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

Record
UBUNTU-CVE-2020-6454
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-2020-0174 No score

Updated chromium-browser-stable packages fix security vulnerabilities

Chromium-browser 81.0.4044.92 fixes security issues:

Multiple flaws were found in the way Chromium 80.0.3987.149 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-2020-6423, CVE-2020-6430, CVE-2020-6431, CVE-2020-6432, CVE-2020-6433, CVE-2020-6434, CVE-2020-6435, CVE-2020-6436, CVE-2020-6437, CVE-2020-6438, CVE-2020-6439, CVE-2020-6440, CVE-2020-6441, CVE-2020-6442, CVE-2020-6443, CVE-2020-6444, CVE-2020-6445, CVE-2020-6446, CVE-2020-6447, CVE-2020-6448, CVE-2020-6450, CVE-2020-6451, CVE-2020-6452, CVE-2020-6454, CVE-2020-6455, CVE-2020-6456)

Record
MGASA-2020-0174
Updated
2026-11-02
OSVopenSUSE-SU-2020:0519-1 No score

Security update for chromium

This update for chromium fixes the following issues:

Chromium was updated to 81.0.4044.92 boo#1168911:

  • CVE-2020-6454: Use after free in extensions
  • CVE-2020-6423: Use after free in audio
  • CVE-2020-6455: Out of bounds read in WebSQL
  • CVE-2020-6430: Type Confusion in V8
  • CVE-2020-6456: Insufficient validation of untrusted input in clipboard
  • CVE-2020-6431: Insufficient policy enforcement in full screen
  • CVE-2020-6432: Insufficient policy enforcement in navigations
  • CVE-2020-6433: Insufficient policy enforcement in extensions
  • CVE-2020-6434: Use after free in devtools
  • CVE-2020-6435: Insufficient policy enforcement in extensions
  • CVE-2020-6436: Use after free in window management
  • CVE-2020-6437: Inappropriate implementation in WebView
  • CVE-2020-6438: Insufficient policy enforcement in extensions
  • CVE-2020-6439: Insufficient policy enforcement in navigations
  • CVE-2020-6440: Inappropriate implementation in extensions
  • CVE-2020-6441: Insufficient policy enforcement in omnibox
  • CVE-2020-6442: Inappropriate implementation in cache
  • CVE-2020-6443: Insufficient data validation in developer tools
  • CVE-2020-6444: Uninitialized Use in WebRTC
  • CVE-2020-6445: Insufficient policy enforcement in trusted types
  • CVE-2020-6446: Insufficient policy enforcement in trusted types
  • CVE-2020-6447: Inappropriate implementation in developer tools
  • CVE-2020-6448: Use after free in V8

Chromium was updated to 80.0.3987.162 boo#1168421:

  • CVE-2020-6450: Use after free in WebAudio.
  • CVE-2020-6451: Use after free in WebAudio.
  • CVE-2020-6452: Heap buffer overflow in media.
  • Use a symbolic icon for GNOME
Record
openSUSE-SU-2020:0519-1
Updated
2026-11-02
OSVopenSUSE-SU-2020:0540-1 No score

Security update for chromium

This update for chromium fixes the following issues:

Chromium was updated to 81.0.4044.92 boo#1168911:

  • CVE-2020-6454: Use after free in extensions
  • CVE-2020-6423: Use after free in audio
  • CVE-2020-6455: Out of bounds read in WebSQL
  • CVE-2020-6430: Type Confusion in V8
  • CVE-2020-6456: Insufficient validation of untrusted input in clipboard
  • CVE-2020-6431: Insufficient policy enforcement in full screen
  • CVE-2020-6432: Insufficient policy enforcement in navigations
  • CVE-2020-6433: Insufficient policy enforcement in extensions
  • CVE-2020-6434: Use after free in devtools
  • CVE-2020-6435: Insufficient policy enforcement in extensions
  • CVE-2020-6436: Use after free in window management
  • CVE-2020-6437: Inappropriate implementation in WebView
  • CVE-2020-6438: Insufficient policy enforcement in extensions
  • CVE-2020-6439: Insufficient policy enforcement in navigations
  • CVE-2020-6440: Inappropriate implementation in extensions
  • CVE-2020-6441: Insufficient policy enforcement in omnibox
  • CVE-2020-6442: Inappropriate implementation in cache
  • CVE-2020-6443: Insufficient data validation in developer tools
  • CVE-2020-6444: Uninitialized Use in WebRTC
  • CVE-2020-6445: Insufficient policy enforcement in trusted types
  • CVE-2020-6446: Insufficient policy enforcement in trusted types
  • CVE-2020-6447: Inappropriate implementation in developer tools
  • CVE-2020-6448: Use after free in V8

Chromium was updated to 80.0.3987.162 boo#1168421:

  • CVE-2020-6450: Use after free in WebAudio.
  • CVE-2020-6451: Use after free in WebAudio.
  • CVE-2020-6452: Heap buffer overflow in media.
  • Use a symbolic icon for GNOME

This update was imported from the openSUSE:Leap:15.1:Update update project.

Record
openSUSE-SU-2020:0540-1
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 81.0.4044.92-1
81.0.4044.92-1
chromium
Debian:13
 before 81.0.4044.92-1
81.0.4044.92-1
chromium
Debian:14
 before 81.0.4044.92-1
81.0.4044.92-1
chromium
Debian:10
From an advisory covering 69 CVEs
 before 83.0.4103.116-1~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 30 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~deb10u179.0.3945.130-279.0.3945.56-179.0.3945.79-180.0.3987.106-180.0.3987.116-180.0.3987.122-180.0.3987.122-280.0.3987.132-180.0.3987.132-1~deb10u180.0.3987.149-180.0.3987.149-1~deb10u180.0.3987.162-180.0.3987.162-1~deb10u181.0.4044.62-181.0.4044.92-183.0.4103.106-183.0.4103.83-1
83.0.4103.116-1~deb10u1
chromium-browser-stable
Mageia:7
From an advisory covering 26 CVEs
 before 81.0.4044.92-1.mga7
81.0.4044.92-1.mga7
chromium-browser
Red Hat:rhel_extras:6
From an advisory covering 24 CVEs
 before 0:81.0.4044.92-2.el6_10
0:81.0.4044.92-2.el6_10
chromium-browser-debuginfo
Red Hat:rhel_extras:6
From an advisory covering 24 CVEs
 before 0:81.0.4044.92-2.el6_10
0:81.0.4044.92-2.el6_10
chromium-browser
Ubuntu:16.04:LTS
 before 81.0.4044.122-0ubuntu0.16.04.1, 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
81.0.4044.122-0ubuntu0.16.04.1
chromium-browser
Ubuntu:18.04:LTS
 before 81.0.4044.122-0ubuntu0.18.04.1, 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 35 moreShow less
63.0.3239.108-0ubuntu164.0.3282.119-0ubuntu164.0.3282.140-0ubuntu164.0.3282.167-0ubuntu165.0.3325.146-0ubuntu165.0.3325.181-0ubuntu166.0.3359.139-0ubuntu0.18.04.366.0.3359.181-0ubuntu0.18.04.167.0.3396.99-0ubuntu0.18.04.168.0.3440.75-0ubuntu0.18.04.168.0.3440.106-0ubuntu0.18.04.169.0.3497.81-0ubuntu0.18.04.170.0.3538.67-0ubuntu0.18.04.170.0.3538.77-0ubuntu0.18.04.170.0.3538.110-0ubuntu0.18.04.171.0.3578.80-0ubuntu0.18.04.171.0.3578.98-0ubuntu0.18.04.172.0.3626.119-0ubuntu0.18.04.172.0.3626.121-0ubuntu0.18.04.173.0.3683.75-0ubuntu0.18.04.173.0.3683.86-0ubuntu0.18.04.174.0.3729.169-0ubuntu0.18.04.175.0.3770.90-0ubuntu0.18.04.175.0.3770.142-0ubuntu0.18.04.176.0.3809.87-0ubuntu0.18.04.176.0.3809.100-0ubuntu0.18.04.177.0.3865.90-0ubuntu0.18.04.178.0.3904.70-0ubuntu0.18.04.278.0.3904.97-0ubuntu0.18.04.178.0.3904.108-0ubuntu0.18.04.179.0.3945.79-0ubuntu0.18.04.179.0.3945.130-0ubuntu0.18.04.180.0.3987.87-0ubuntu0.18.04.180.0.3987.149-0ubuntu0.18.04.180.0.3987.163-0ubuntu0.18.04.1
81.0.4044.122-0ubuntu0.18.04.1
chromium
openSUSE:Leap 15.1
From an advisory covering 26 CVEs
 before 81.0.4044.92-lp151.2.77.1
81.0.4044.92-lp151.2.77.1
chromium
SUSE:Package Hub 15 SP1
From an advisory covering 26 CVEs
 before 81.0.4044.92-bp151.3.66.1
81.0.4044.92-bp151.3.66.1
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

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2020-6454 is a high vulnerability (CVSS 8.8) in Google Chrome, published April 13, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.44%, the 73rd percentile. Fixed in chromium 81.0.4044.92-1.

References

Show 194 moreShow less
This page doesn't list everything

Left out here: 11 versions and 2,231 references. The JSON record has them.

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