CVE-2016-2814: Mozilla Firefox

High severity, CVSS 8.8. EPSS: 3.8% chance of exploitation in the next 30 days.

Heap-based buffer overflow in the stagefright::SampleTable::parseSampleCencInfo function in libstagefright in Mozilla Firefox before 46.0, Firefox ESR 38.x before 38.8, and Firefox ESR 45.x before 45.1 allows remote attackers to execute arbitrary code via crafted CENC offsets that lead to mismanagement of the sizes table.

Affected products

• Mozilla Firefox: up to and including 45.0.2; version 38.0 only; version 38.0.1 only; version 38.0.5 only; version 38.1.0 only; version 38.1.1 only; …

Published 2016-04-30. Last modified 2026-06-17.