CVE-2004-2466

Exp

chat.ghp in Easy Chat Server 1.2 allows remote attackers to cause a denial of service (server crash) via a long username parameter, possibly due to a buffer overflow. NOTE: it was later reported that 2.2 is also affected.

Published: 2004-12-31 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-2466 is rated High Exploit Risk (64.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 44.51%, 97th percentile). 9 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-2004-2466

EDB-ID Source Kind Published Link
50999 exploit_db edb 2022-08-01 Exploit-DB ↗
33326 exploit_db edb 2014-05-12 Exploit-DB ↗
16772 exploit_db edb 2010-08-06 Exploit-DB ↗
4289 exploit_db edb 2007-08-14 Exploit-DB ↗
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Exploit prediction scoring system (EPSS) score for CVE-2004-2466

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 2025-11-13 72.51% 44.51% -28.00%
2 2025-08-03 37.99% 72.51% +34.52%
3 2025-08-02 — 37.99% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-2466

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2004-2466

Affected software / configurations for CVE-2004-2466

Vendor Product Version Raw CPE
efs_software easy_chat_server 1.2 cpe:2.3:a:efs_software:easy_chat_server:1.2:*:*:*:*:*:*:*
efs_software easy_chat_server 2.2 cpe:2.3:a:efs_software:easy_chat_server:2.2:*:*:*:*:*:*:*

References for CVE-2004-2466

URL Tags
http://archives.neohapsis.com/archives/bugtraq/2004-07/0013.html Exploit Vendor Advisory
http://archives.neohapsis.com/archives/fulldisclosure/2004-07/0077.html Exploit Vendor Advisory
http://packetstormsecurity.com/files/167892/Easy-Chat-Server-3.1-Buffer-Overflow.html
http://secunia.com/advisories/12006 Exploit Vendor Advisory
http://secunia.com/advisories/26461 Vendor Advisory
http://secunia.com/advisories/58427
http://www.autistici.org/fdonato/advisory/EasyChatServer1.2-adv.txt Exploit Vendor Advisory
http://www.exploit-db.com/exploits/33326
http://www.osvdb.org/7416 Exploit
http://www.securityfocus.com/bid/25328
http://www.securityfocus.com/bid/67384
http://www.vupen.com/english/advisories/2007/2901
https://exchange.xforce.ibmcloud.com/vulnerabilities/16629
https://exchange.xforce.ibmcloud.com/vulnerabilities/36013
https://www.exploit-db.com/exploits/4289
cvelogic Threat Intelligence