CVE-2017-5397 json
The cache directory on the local file system is set to be world writable.
published 2018-06-11 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-14501
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.6%
- EPSS 3.6% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
3.62% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- Mozilla Firefox
Classification
- Weakness
-
- CWE-829 Inclusion of Functionality from Untrusted Control Sphere
References
-
bugzilla.mozilla.org
/show_bug.cgi?id=1337304
issue-tracking, patch, vendor-advisory
-
mozilla.org
/security/advisories/mfsa2017-04/
vendor-advisory
-
securityfocus.com
/bid/96144
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2017-5397
- NVD CVE-2017-5397
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.