CVE-2020-6826: Critical severity firefox vulnerability

Published Apr 7, 2020
·
Updated

Last updated 24 July 2024

Other sources

Mozilla developers Tyson Smith, Bob Clary, and Alexandru Michis reported memory safety bugs present in Firefox 74. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.

Affected Software

3 affected componentsFixes available
Mozilla Firefox<75
75
Mozilla Firefox<75.0
debian/firefox
137.0.1-1

Event History

Apr 7, 2020
CVE Published
12:00 AM
Apr 24, 2020
CVE Published
via MITRE·03:51 PM
Data Sourced
via MITRE·03:51 PM
DescriptionWeakness
Jan 11, 2024
Data Sourced
via Launchpad·11:52 PM
Description
Sep 20, 2024
Data Sourced
via Ubuntu·01:15 AM
RemedyDescriptionSeverityAffected Software
Mar 27, 2025
Data Sourced
via Debian·03:30 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2020-6826?

The severity of CVE-2020-6826 is critical with a CVSS score of 9.8.

2

How can CVE-2020-6826 be exploited?

CVE-2020-6826 can be exploited by leveraging memory corruption to run arbitrary code.

3

Which software is affected by CVE-2020-6826?

Mozilla Firefox versions up to exclusive 75.0 are affected by CVE-2020-6826.

4

Where can I find more information about CVE-2020-6826?

More information about CVE-2020-6826 can be found at the following references: [Reference 1](https://bugzilla.mozilla.org/buglist.cgi?bug_id=1613009%2C1613195%2C1616734%2C1617488%2C1619229%2C1620719%2C1624897), [Reference 2](https://www.mozilla.org/en-US/security/advisories/mfsa2020-12/), [Reference 3](https://www.mozilla.org/security/advisories/mfsa2020-12/).

5

How do I mitigate the vulnerability CVE-2020-6826?

To mitigate the vulnerability CVE-2020-6826, it is recommended to update to Mozilla Firefox version 75.0 or later.

Contact

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