CVE-2000-0833: Jack De Winter Winsmtp

High severity, CVSS 10.0. EPSS: 10.4% chance of exploitation in the next 30 days.

Buffer overflow in WinSMTP 1.06f and 2.X allows remote attackers to cause a denial of service via a long (1) USER or (2) HELO command.

Affected products

• Jack De Winter Winsmtp: version 1.6f only; version 2.x only

Published 2000-11-14. Last modified 2026-06-16.