CVE-2017-5456

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

A mechanism to bypass file system access protections in the sandbox using the file system request constructor through an IPC message. This allows for read and write access to the local file system. This vulnerability affects Firefox ESR < 52.1 and Firefox < 53.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-732

Affected software

No affected versions have been published.

Timeline

Published: Jun 11, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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