CVE-2018-12390
9.8
CRITICAL
CVSS 3.1
EPSS 2.1%
Description
Mozilla developers and community members reported memory safety bugs present in Firefox 62 and Firefox ESR 60.2. 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, Firefox ESR < 60.3, and Thunderbird < 60.3.
How to fix CVE-2018-12390
To remediate CVE-2018-12390, upgrade the affected package to a fixed version below.
- —upgrade to 60.3.0esr-1 or later
- —upgrade to 1:60.3.0-1 or later
Is CVE-2018-12390 being exploited?
Low — EPSS is 2.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 60.3.0esr-1
- from 0, < 1:60.3.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |