CVE-2004-0409

Exp

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.

Published: 2004-06-01 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-0409 is rated High Exploit Risk (73.1/100): CVSS High severity, with high exploitation likelihood (EPSS 8.96%, 95th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2004-0409

EDB-ID Source Kind Published Link
296 exploit_db edb 2004-05-05 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2004-0409

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 30.77% 8.96% -21.81%
2 2026-02-10 26.77% 30.77% +4.00%
3 2025-03-30 — 26.77% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-0409

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2004-0409

OS Trackers for CVE-2004-0409

vendor priority summary link
gentoo low CVE-2004-0409: 1 GLSA(s) (200404-15), 1 atom(s) (net-irc/xchat); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2004-0409
redhat — — https://access.redhat.com/security/cve/CVE-2004-0409
ubuntu medium CVE-2004-0409 medium priority: Ubuntu including 1 source packages (xchat), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2004-0409

Affected software / configurations for CVE-2004-0409

Vendor Product Version Raw CPE
xchat xchat 1.8.0 cpe:2.3:a:xchat:xchat:1.8.0:*:*:*:*:*:*:*
xchat xchat 1.8.1 cpe:2.3:a:xchat:xchat:1.8.1:*:*:*:*:*:*:*
xchat xchat 1.8.2 cpe:2.3:a:xchat:xchat:1.8.2:*:*:*:*:*:*:*
xchat xchat 1.8.3 cpe:2.3:a:xchat:xchat:1.8.3:*:*:*:*:*:*:*
xchat xchat 1.8.4 cpe:2.3:a:xchat:xchat:1.8.4:*:*:*:*:*:*:*
xchat xchat 1.8.5 cpe:2.3:a:xchat:xchat:1.8.5:*:*:*:*:*:*:*
xchat xchat 1.8.6 cpe:2.3:a:xchat:xchat:1.8.6:*:*:*:*:*:*:*
xchat xchat 1.8.7 cpe:2.3:a:xchat:xchat:1.8.7:*:*:*:*:*:*:*
xchat xchat 1.8.8 cpe:2.3:a:xchat:xchat:1.8.8:*:*:*:*:*:*:*
xchat xchat 1.8.9 cpe:2.3:a:xchat:xchat:1.8.9:*:*:*:*:*:*:*
xchat xchat 1.9.0 cpe:2.3:a:xchat:xchat:1.9.0:*:*:*:*:*:*:*
xchat xchat 1.9.1 cpe:2.3:a:xchat:xchat:1.9.1:*:*:*:*:*:*:*
xchat xchat 1.9.2 cpe:2.3:a:xchat:xchat:1.9.2:*:*:*:*:*:*:*
xchat xchat 1.9.3 cpe:2.3:a:xchat:xchat:1.9.3:*:*:*:*:*:*:*
xchat xchat 1.9.4 cpe:2.3:a:xchat:xchat:1.9.4:*:*:*:*:*:*:*
xchat xchat 1.9.5 cpe:2.3:a:xchat:xchat:1.9.5:*:*:*:*:*:*:*
xchat xchat 1.9.6 cpe:2.3:a:xchat:xchat:1.9.6:*:*:*:*:*:*:*
xchat xchat 1.9.7 cpe:2.3:a:xchat:xchat:1.9.7:*:*:*:*:*:*:*
xchat xchat 1.9.8 cpe:2.3:a:xchat:xchat:1.9.8:*:*:*:*:*:*:*
xchat xchat 1.9.9 cpe:2.3:a:xchat:xchat:1.9.9:*:*:*:*:*:*:*
xchat xchat 2.0.0 cpe:2.3:a:xchat:xchat:2.0.0:*:*:*:*:*:*:*
xchat xchat 2.0.1 cpe:2.3:a:xchat:xchat:2.0.1:*:*:*:*:*:*:*
xchat xchat 2.0.2 cpe:2.3:a:xchat:xchat:2.0.2:*:*:*:*:*:*:*
xchat xchat 2.0.3 cpe:2.3:a:xchat:xchat:2.0.3:*:*:*:*:*:*:*
xchat xchat 2.0.4 cpe:2.3:a:xchat:xchat:2.0.4:*:*:*:*:*:*:*
xchat xchat 2.0.5 cpe:2.3:a:xchat:xchat:2.0.5:*:*:*:*:*:*:*
xchat xchat 2.0.6 cpe:2.3:a:xchat:xchat:2.0.6:*:*:*:*:*:*:*
xchat xchat 2.0.7 cpe:2.3:a:xchat:xchat:2.0.7:*:*:*:*:*:*:*
xchat xchat 2.0.8 cpe:2.3:a:xchat:xchat:2.0.8:*:*:*:*:*:*:*

References for CVE-2004-0409

cvelogic Threat Intelligence