CVE-2010-1196: Mozilla Firefox

High severity, CVSS 9.3. EPSS: 4.9% chance of exploitation in the next 30 days.

Integer overflow in the nsGenericDOMDataNode::SetTextInternal function in Mozilla Firefox 3.5.x before 3.5.10 and 3.6.x before 3.6.4, Thunderbird before 3.0.5, and SeaMonkey before 2.0.5 allows remote attackers to execute arbitrary code via a DOM node with a long text value that triggers a heap-based buffer overflow.

Affected products

• Mozilla Firefox: version 3.5 only; 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 2.0.4; 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 3.0.4; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2010-06-24. Last modified 2026-06-16.