CVE-2012-3987: Mozilla Firefox

Medium severity, CVSS 4.0. EPSS: 1.5% chance of exploitation in the next 30 days.

Mozilla Firefox before 16.0 on Android assigns chrome privileges to Reader Mode pages, which allows user-assisted remote attackers to bypass intended access restrictions via a crafted web site.

Affected products

• Mozilla Firefox: up to and including 15.0.1; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2012-10-10. Last modified 2026-06-16.