CVE-2017-5468: Mozilla Firefox

Critical severity, CVSS 9.1. EPSS: 2.4% chance of exploitation in the next 30 days.

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)

Published 2018-06-11. Last modified 2026-06-17.