A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-4310-1 firefox-esr security update
Ubuntu USN Ubuntu USN USN-3778-1 Firefox vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

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

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-05T08:30:59.824Z

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

Link: CVE-2018-12386

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-10-18T13:29:06.273

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

Link: CVE-2018-12386

cve-icon Redhat

Severity : Critical

Publid Date: 2018-10-02T00:00:00Z

Links: CVE-2018-12386 - Bugzilla

cve-icon OpenCVE Enrichment

No data.