CVE-2011-0061: Mozilla Firefox

High severity, CVSS 9.3. EPSS: 4.7% chance of exploitation in the next 30 days.

Buffer overflow in Mozilla Firefox 3.6.x before 3.6.14, Thunderbird before 3.1.8, and SeaMonkey before 2.0.12 might allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted JPEG image.

Affected products

• Mozilla Firefox: version 3.6 only; version 3.6.2 only; version 3.6.3 only; version 3.6.4 only; version 3.6.6 only; version 3.6.7 only; …
• Mozilla Seamonkey: up to and including 2.0.11; version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; …
• Mozilla Thunderbird: up to and including 3.1.7; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2011-03-02. Last modified 2026-06-16.