CVE-2020-6824: Mozilla Firefox

Low severity, CVSS 2.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Initially, a user opens a Private Browsing Window and generates a password for a site, then closes the Private Browsing Window but leaves Firefox open. Subsequently, if the user had opened a new Private Browsing Window, revisited the same site, and generated a new password - the generated passwords would have been identical, rather than independent. This vulnerability affects Firefox < 75.

Affected products

• Mozilla Firefox: before 75.0 (fixed in 75.0)

Published 2020-04-24. Last modified 2026-06-17.