CVE-2008-0016: Mozilla Firefox

High severity, CVSS 10.0. EPSS: 43.9% chance of exploitation in the next 30 days.

Stack-based buffer overflow in the URL parsing implementation in Mozilla Firefox before 2.0.0.17 and SeaMonkey before 1.1.12 allows remote attackers to execute arbitrary code via a crafted UTF-8 URL in a link.

Affected products

• Mozilla Firefox: up to and including 2.0.0.16; version 0.8 only; version 0.9 only; version 0.9.1 only; version 0.9.2 only; version 0.9.3 only; …
• Mozilla Seamonkey: any version; up to and including 1.1.11; version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; …

Published 2008-09-24. Last modified 2026-06-16.