Mozilla developers and community members reported memory safety bugs present in Firefox 63 and Firefox ESR 60.3. 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 Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.
History

Tue, 25 Nov 2025 18:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Vendors & Products Mozilla firefox Esr

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2019-02-28T18:00:00

Updated: 2024-08-05T08:38:04.965Z

Reserved: 2018-06-14T00:00:00

Link: CVE-2018-12405

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-02-28T18:29:01.257

Modified: 2025-11-25T17:50:16.803

Link: CVE-2018-12405

cve-icon Redhat

Severity : Critical

Publid Date: 2018-12-12T00:00:00Z

Links: CVE-2018-12405 - Bugzilla