CVE-2006-5783: Mozilla Firefox

High severity, CVSS 7.8. EPSS: 2.4% chance of exploitation in the next 30 days.

Firefox 1.5.0.7 on Kubuntu Linux allows remote attackers to cause a denial of service (crash) via a long URL in an A tag. NOTE: this issue has been disputed by several vendors, who could not reproduce the report. In addition, the scope of the impact - system freeze - suggests an issue that is not related to Firefox. Due to this impact, CVE concurs with the dispute

Affected products

• Mozilla Firefox: version 1.5.0.7 only

Published 2006-11-07. Last modified 2026-06-16.