CVE-2009-3388: Mozilla Firefox

High severity, CVSS 9.3. EPSS: 2.6% chance of exploitation in the next 30 days.

liboggplay in Mozilla Firefox 3.5.x before 3.5.6 and SeaMonkey before 2.0.1 might allow context-dependent attackers to cause a denial of service (application crash) or execute arbitrary code via unspecified vectors, related to "memory safety issues."

Affected products

• Mozilla Firefox: version 3.5.1 only; version 3.5.2 only; version 3.5.3 only; version 3.5.4 only; version 3.5.5 only
• Mozilla Seamonkey: up to and including 2.0; version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; …

Published 2009-12-17. Last modified 2026-06-16.