CVE-2020-12426: Critical severity firefox vulnerability
Last updated 24 July 2024
Other sources
Mozilla developers and community members Bob Clary, Benjamin Bouvier, Calixte Denizet, Christian Holler reported memory safety bugs present in Firefox 77. 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 and community members Bob Clary, Benjamin Bouvier, Calixte Denizet, Christian Holler reported memory safety bugs present in Thunderbird 77. 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
Mozilla developers and community members reported memory safety bugs present in Firefox 77. 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 < 78.
— Launchpad
Affected Software
Remediation
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2020-12426?
The severity of CVE-2020-12426 is high with a severity value of 7.
What software is affected by CVE-2020-12426?
Mozilla Firefox version up to exclusive 78 and Mozilla Thunderbird version up to exclusive 78 are affected by CVE-2020-12426.
Are there any patches or updates available for CVE-2020-12426?
Yes, Mozilla has released updates to address CVE-2020-12426. Users should update to version 78 or later for both Mozilla Firefox and Mozilla Thunderbird.
What is the nature of the vulnerability in CVE-2020-12426?
CVE-2020-12426 is a memory safety bug that could lead to memory corruption and potential exploitation to run arbitrary code.
Where can I find more information about CVE-2020-12426?
More information about CVE-2020-12426 can be found on the Mozilla Bugzilla and Mozilla security advisories websites.