CVE-2004-1750: Vnc Realvnc

Medium severity, CVSS 5.0. EPSS: 1.7% chance of exploitation in the next 30 days.

RealVNC 4.0 and earlier allows remote attackers to cause a denial of service (crash) via a large number of connections to port 5900.

Affected products

• Vnc Realvnc: version 4.0 only

Published 2004-12-31. Last modified 2026-06-16.