CVE-2020-26969: Critical severity firefox vulnerability

Published Nov 17, 2020
·
Updated

Mozilla developers reported memory safety bugs present in Firefox 82. 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 < 83.

Other sources

Mozilla developers Tyson Smith, Aaron Klotz, David Major and Jason Kratzer reported memory safety bugs present in Firefox 82. 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

2 affected componentsFixes available
Mozilla Firefox<83
83
Mozilla Firefox<83.0

Event History

Nov 17, 2020
CVE Published
12:00 AM
Dec 9, 2020
CVE Published
via MITRE·12:26 AM
Data Sourced
via MITRE·12:26 AM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is vulnerability CVE-2020-26969?

Vulnerability CVE-2020-26969 is a memory safety bug present in Firefox 82 that could have been exploited to run arbitrary code.

2

What is the severity of vulnerability CVE-2020-26969?

The severity of vulnerability CVE-2020-26969 is critical with a CVSS score of 8.8.

3

Which software versions are affected by vulnerability CVE-2020-26969?

Vulnerability CVE-2020-26969 affects Mozilla Firefox versions up to exclusive 83.0.

4

How can vulnerability CVE-2020-26969 be fixed?

To fix vulnerability CVE-2020-26969, users should update their Mozilla Firefox to version 83.0 or higher.

5

Where can I find more information about vulnerability CVE-2020-26969?

More information about vulnerability CVE-2020-26969 can be found in the following references: [Bugzilla - Bug ID 1623920, 1651705, 1667872, 1668876], [Mozilla Security Advisory - MFSA2020-50].

Contact

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