CVE-2018-12388

HIGH 8.8CVE-2018-12388 · Published 28/02/2019 · updated 17/06/2026

In short

CVE-2018-12388 is a HIGH (CVSS 8.8) vulnerability affecting firefox (mozilla).
Chance of exploitation in the next 30 days (EPSS): 1.4%, higher than 73.1% of all vulnerabilities.
Fix: update to 63.0 or later.

Package	Affected versions	Patched versions
firefox mozilla	`< 63.0`	`63.0`

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 62. 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 < 63.

References

securityfocus.com/bid/105721 · Third Party Advisory
securitytracker.com/id/1041944 · Third Party Advisory
bugzilla.mozilla.org/buglist.cgi · Issue Tracking
usn.ubuntu.com/3801-1 · Third Party Advisory
mozilla.org/security/advisories/mfsa2018-26 · Vendor Advisory

More vulnerabilities in firefox

See all →

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free

Package

Affected versions

Patched versions

firefox

mozilla

< 63.0

63.0

More vulnerabilities in firefox

See all →