CVE-2003-1382: Instantservers Inc. Ismail

High severity, CVSS 7.5. EPSS: 2.9% chance of exploitation in the next 30 days.

Buffer overflow in ISMail 1.4.3 and earlier allow remote attackers to execute arbitrary code via long domain names in (1) MAIL FROM or (2) RCPT TO fields.

Affected products

Published 2003-12-31. Last modified 2026-06-16.