CVE-2020-15668: Mozilla Firefox

Medium severity, CVSS 4.3. EPSS: 0.5% chance of exploitation in the next 30 days.

A lock was missing when accessing a data structure and importing certificate information into the trust database. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

Affected products

• Mozilla Firefox: before 80.0 (fixed in 80.0)
• Mozilla Firefox Mobile: before 80.0 (fixed in 80.0)

Published 2020-10-01. Last modified 2026-08-19.