CVE-2017-5468

Severity: critical (CVSS 9.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-06-11 · updated 2026-06-17
Weakness: CWE-665

Description

An issue with incorrect ownership model of "privateBrowsing" information exposed through developer tools. This can result in a non-exploitable crash when manually triggered during debugging. This vulnerability affects Firefox < 53.

Affected products

Mozilla Firefox: before 53.0 — fixed in 53.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 53.0. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/97940
http://www.securitytracker.com/id/1038320
https://bugzilla.mozilla.org/show_bug.cgi?id=1329521
https://www.mozilla.org/security/advisories/mfsa2017-10/
http://www.securityfocus.com/bid/97940
http://www.securitytracker.com/id/1038320
https://bugzilla.mozilla.org/show_bug.cgi?id=1329521
https://www.mozilla.org/security/advisories/mfsa2017-10/

Get alerted when CVE-2017-5468 or the next vulnerability affects your stack