CVE-2018-12406

firefox: memory safety bugs showing evidence of memory corruption leading to run arbitrary code

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Severity

Critical

Red Hat Product Security

8.8

CVSS 3.0

Review impact separately from score.

Published · December 11, 2018

Updated · June 27, 2026

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 63. 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 < 64.

Statement

This flaw did not affect the Firefox 60 ESR stream.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 8.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-1341 · Multiple Releases of Same Resource or Handle