CVE-2020-12411: Critical severity firefox vulnerability

Published Jun 2, 2020
·
Updated

Last updated 24 July 2024

Other sources

Mozilla developers :Gijs (he/him), Randell Jesup reported memory safety bugs present in Firefox 76. 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.

Mozilla developers reported memory safety bugs present in Firefox 76. 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. This vulnerability affects Firefox < 77.

Launchpad

Affected Software

3 affected componentsFixes available
Mozilla Firefox<77
77
Mozilla Firefox<77.0
debian/firefox
137.0.1-1

Event History

Jun 2, 2020
CVE Published
12:00 AM
Jul 9, 2020
CVE Published
via MITRE·02:46 PM
Data Sourced
via MITRE·02:46 PM
DescriptionWeakness
Jan 11, 2024
Data Sourced
via Launchpad·11:38 PM
Description
Sep 16, 2024
Data Sourced
via Ubuntu·02:21 AM
RemedyDescriptionSeverityAffected Software
Mar 27, 2025
Data Sourced
via Debian·03:31 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2020-12411?

CVE-2020-12411 is a memory safety bug present in Firefox 76 and affects versions of Firefox up to version 77.

2

What are the potential impacts of CVE-2020-12411?

CVE-2020-12411 could potentially be exploited to run arbitrary code.

3

What is the severity of CVE-2020-12411?

CVE-2020-12411 has a severity rating of 8.8 (critical).

4

How do I fix CVE-2020-12411?

To fix CVE-2020-12411, you should update Firefox to version 77 (or a higher version).

5

Where can I find more information about CVE-2020-12411?

You can find more information about CVE-2020-12411 in the references provided: [link](https://bugzilla.mozilla.org/buglist.cgi?bug_id=1620972%2C1625333), [link](https://www.mozilla.org/en-US/security/advisories/mfsa2020-20/), [link](https://www.mozilla.org/security/advisories/mfsa2020-20/).

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