CVE-2006-2723: Mozilla Firefox

Medium severity, CVSS 5.0. EPSS: 3% chance of exploitation in the next 30 days.

Unspecified versions of Mozilla Firefox allow remote attackers to cause a denial of service (crash) via a web page that contains a large number of nested marquee tags. NOTE: a followup post indicated that the initial report could not be verified.

Affected products

• Mozilla Firefox: version 2.0 only

Published 2006-06-01. Last modified 2026-06-16.