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Vulnerability record · CVE-2004-1750 · published 31 December 2004

CVE-2004-1750: Realvnc vulnerability

Vnc · Realvnc

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

5.0 CVSS 2.0 Medium EPSS 1.7% · top 23.8%
5.0CVSS 2.0 base score
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

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

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://marc.info/?l=bugtraq&m=109346198700529&w=2
http://secunia.com/advisories/13143 Exploit
http://www.securityfocus.com/bid/11048 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/17123
http://marc.info/?l=bugtraq&m=109346198700529&w=2
http://secunia.com/advisories/13143 Exploit
http://www.securityfocus.com/bid/11048 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/17123

Track CVE-2004-1750 inside VULONE

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2006-2369RealVNC authentication bypass via insecure security typeRealVNC 4.1.1 and products embedding it, including AdderLink IP and Cisco CallManager, accept a client-requested insecure security type such as "Type…EPSS 92%analysed

Source: NIST National Vulnerability Database (record CVE-2004-1750), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.