CVE-2018-5126: Buffer Overflow
Last updated 24 July 2024
Other sources
Memory safety bugs were reported in Firefox 58. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 59.
— Launchpad
Mozilla developers and community members Calixte Denizet, Christian Holler, Sebastian Hengst, Jason Kratzer, Tyson Smith, Ryan VanderMeulen, Noemi Erli, Karl Tomlinson, Philipp, Gary Kwong, and Ronald Crane reported memory safety bugs present in Firefox 58. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code.
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is CVE-2018-5126?
CVE-2018-5126 is a vulnerability in Firefox 58 that allows memory corruption.
Which software versions are affected by CVE-2018-5126?
Firefox versions up to 59.0 are affected by CVE-2018-5126.
What is the severity of CVE-2018-5126?
CVE-2018-5126 has a severity rating of 9 (Critical).
How do I fix CVE-2018-5126?
To fix CVE-2018-5126, upgrade to Firefox version 59.0 or later.
Where can I find more information about CVE-2018-5126?
You can find more information about CVE-2018-5126 on the Mozilla Bugzilla website and the Mozilla Security Advisories website.