← Vulnerability feed

Vulnerability record · CVE-2004-0605 · published 6 December 2004

CVE-2004-0605: Ircd-hybrid vulnerability

IIrcd Hybrid · Ircd Hybrid

Non-registered IRC users using (1) ircd-hybrid 7.0.1 and earlier, (2) ircd-ratbox 1.5.1 and earlier, or (3) ircd-ratbox 2.0rc6 and earlier do not have a rate-limit imposed, which could allow remote attackers to cause a denial of service by repeatedly making requests, which are slowly dequeued.

5.0 CVSS 2.0 Medium EPSS 7.3% · top 5.8% CWE-16 · CWE-16
5.0CVSS 2.0 base score
7.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

Non-registered IRC users using (1) ircd-hybrid 7.0.1 and earlier, (2) ircd-ratbox 1.5.1 and earlier, or (3) ircd-ratbox 2.0rc6 and earlier do not have a rate-limit imposed, which could allow remote attackers to cause a denial of service by repeatedly making requests, which are slowly dequeued.

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

Affected products

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

References

LinkTags
http://marc.info/?l=bugtraq&m=108766803817406&w=2
http://www.securityfocus.com/bid/10572 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/16457
http://marc.info/?l=bugtraq&m=108766803817406&w=2
http://www.securityfocus.com/bid/10572 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/16457

Track CVE-2004-0605 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

6.8CVE-2009-4016Ircd-hybrid vulnerabilityInteger underflow in the clean_string function in irc_string.c in (1) IRCD-hybrid 7.2.2 and 7.2.3, (2) ircd-ratbox before 2.2.9, and (3) oftc-hybrid …EPSS 4.0%5.0CVE-2013-0238Ircd-hybrid improper input validation vulnerabilityThe try_parse_v4_netmask function in hostmask.c in IRCD-Hybrid before 8.0.6 does not properly validate masks, which allows remote attackers to cause …EPSS 10.0%5.0CVE-2012-6084Ircd-ratbox vulnerabilitymodules/m_capab.c in (1) ircd-ratbox before 3.0.8 and (2) Charybdis before 3.4.2 does not properly support capability negotiation during server hands…EPSS 3.0%5.0CVE-2010-0300Ircd-ratbox vulnerabilitycache.c in ircd-ratbox before 2.2.9 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a HELP comma…EPSS 2.2%5.0CVE-2007-2786Ircd-ratbox vulnerabilityRatbox IRC Daemon (aka ircd-ratbox) 2.2.5 and earlier allows remote attackers to cause a denial of service (resource exhaustion) by making many reque…EPSS 1.7%

Source: NIST National Vulnerability Database (record CVE-2004-0605), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.