CVE-2014-1593: Mozilla Firefox

Medium severity, CVSS 6.8. EPSS: 4.1% chance of exploitation in the next 30 days.

Stack-based buffer overflow in the mozilla::FileBlockCache::Read function in Mozilla Firefox before 34.0, Firefox ESR 31.x before 31.3, Thunderbird before 31.3, and SeaMonkey before 2.31 allows remote attackers to execute arbitrary code via crafted media content.

Affected products

• Mozilla Firefox: up to and including 31.2; up to and including 33.0
• Mozilla Seamonkey: up to and including 2.30
• Mozilla Thunderbird: up to and including 31.2

Published 2014-12-11. Last modified 2026-06-17.