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Vulnerability record · CVE-2004-0409 · published 1 June 2004

CVE-2004-0409: Xchat vulnerability

Xchat · Xchat

Stack-based buffer overflow in the Socks-5 proxy code for XChat 1.8.0 to 2.0.8, with socks5 traversal enabled, allows remote attackers to execute arbitrary code.

7.5 CVSS 2.0 High EPSS 9.0% · top 4.9%
7.5CVSS 2.0 base score
9.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

Description

Stack-based buffer overflow in the Socks-5 proxy code for XChat 1.8.0 to 2.0.8, with socks5 traversal enabled, allows remote attackers to execute arbitrary code.

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

Affected products

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

References

LinkTags
http://mail.nl.linux.org/xchat-announce/2004-04/msg00000.html PatchVendor Advisory
http://security.gentoo.org/glsa/glsa-200404-15.xml
http://www.fedoralegacy.org/updates/FC2/2005-11-14-FLSA_2005_123013
http://www.redhat.com/support/errata/RHSA-2004-177.html PatchVendor Advisory
http://www.redhat.com/support/errata/RHSA-2004-585.html
http://www.xchat.org/ PatchVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11312
https://www.debian.org/security/2004/dsa-493
http://mail.nl.linux.org/xchat-announce/2004-04/msg00000.html PatchVendor Advisory
http://security.gentoo.org/glsa/glsa-200404-15.xml
http://www.fedoralegacy.org/updates/FC2/2005-11-14-FLSA_2005_123013
http://www.redhat.com/support/errata/RHSA-2004-177.html PatchVendor Advisory
http://www.redhat.com/support/errata/RHSA-2004-585.html
http://www.xchat.org/ PatchVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11312
https://www.debian.org/security/2004/dsa-493

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Related vulnerabilities

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

9.8CVE-2012-0828Gnome gtk out-of-bounds write vulnerabilityHeap-based buffer overflow in Xchat-WDK before 1499-4 (2012-01-18) xchat 2.8.6 on Maemo architecture could allow remote attackers to cause a denial o…EPSS 4.3%7.5CVE-2003-1000Xchat null pointer dereference vulnerabilityxchat 2.0.6 allows remote attackers to cause a denial of service (crash) via a passive DCC request with an invalid ID number, which causes a null der…EPSS 2.6%7.5CVE-2002-0006Xchat vulnerabilityXChat 1.8.7 and earlier, including default configurations of 1.4.2 and 1.4.3, allows remote attackers to execute arbitrary IRC commands as other clie…EPSS 8.1%7.5CVE-2002-0382Xchat vulnerabilityXChat IRC client allows remote attackers to execute arbitrary commands via a /dns command on a host whose DNS reverse lookup contains shell metachara…EPSS 2.4%7.5CVE-2001-0792Xchat vulnerabilityFormat string vulnerability in XChat 1.2.x allows remote attackers to execute arbitrary code via a malformed nickname.EPSS 2.8%7.5CVE-2000-0787Xchat vulnerabilityIRC Xchat client versions 1.4.2 and earlier allows remote attackers to execute arbitrary commands by encoding shell metacharacters into a URL which X…EPSS 9.2%6.9CVE-2009-0315Xchat vulnerabilityUntrusted search path vulnerability in the Python module in xchat allows local users to execute arbitrary code via a Trojan horse Python file in the …EPSS 0.37%6.8CVE-2008-2841Microsoft internet explorer code injection vulnerabilityArgument injection vulnerability in XChat 2.8.7b and earlier on Windows, when Internet Explorer is used, allows remote attackers to execute arbitrary…EPSS 15%

Source: NIST National Vulnerability Database (record CVE-2004-0409), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.