CVE-2008-5430: Mozilla Thunderbird

Medium severity, CVSS 4.3. EPSS: 1% chance of exploitation in the next 30 days.

Mozilla Thunderbird 2.0.14 does not properly handle (1) multipart/mixed e-mail messages with many MIME parts and possibly (2) e-mail messages with many "Content-type: message/rfc822;" headers, which might allow remote attackers to cause a denial of service (stack consumption or other resource consumption) via a large e-mail message, a related issue to CVE-2006-1173.

Affected products

• Mozilla Thunderbird: version 2.0.0.14 only

Published 2008-12-13. Last modified 2026-06-16.