8.8
CWE
787
Advisory Published
CVE Published
Updated

CVE-2020-6822

First published: Tue Apr 07 2020(Updated: )

Last updated 24 July 2024

Credit: security@mozilla.org security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Mozilla Thunderbird<68.7
68.7
Mozilla Firefox ESR<68.7
68.7
Mozilla Firefox<75
75
Mozilla Firefox<75.0
Mozilla Firefox ESR<68.7.0
Mozilla Thunderbird<68.7.0
debian/firefox
132.0.2-1
debian/firefox-esr
115.14.0esr-1~deb11u1
128.4.0esr-1~deb11u1
128.3.1esr-1~deb12u1
128.4.0esr-1~deb12u1
128.4.0esr-1
debian/thunderbird
1:115.12.0-1~deb11u1
1:128.4.3esr-1~deb11u1
1:115.16.0esr-1~deb12u1
1:128.4.3esr-1~deb12u1
1:128.4.3esr-1

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2020-6822?

    CVE-2020-6822 is a vulnerability that allows an out-of-bounds write when processing large images in Mozilla Thunderbird and Firefox.

  • How does CVE-2020-6822 affect Thunderbird and Firefox?

    CVE-2020-6822 affects Thunderbird versions prior to 68.7.0 and Firefox ESR versions prior to 68.7. This vulnerability allows arbitrary code execution.

  • What is the severity of CVE-2020-6822?

    CVE-2020-6822 has a severity score of 8.8, which is considered high.

  • How can I fix CVE-2020-6822?

    To fix CVE-2020-6822, update Thunderbird to version 68.7.0 or later, and Firefox ESR to version 68.7 or later.

  • Where can I find more information about CVE-2020-6822?

    You can find more information about CVE-2020-6822 in the references provided: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1544181), [Mozilla Security Advisories](https://www.mozilla.org/en-US/security/advisories/mfsa2020-12/), and [MITRE CVE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6822).

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