CVE-2017-5397

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

The cache directory on the local file system is set to be world writable. Firefox defaults to extracting libraries from this cache. This allows for the possibility of an installed malicious application or tools with write access to the file system to replace files used by Firefox with their own versions. This vulnerability affects Firefox < 51.0.3.

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-829

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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