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CVE-2004-2466

75
FAUCET Score

CVE-2004-2466 describes a denial-of-service vulnerability in EFS Easy Chat Server versions 1.2 and 2.2, where a remote attacker can crash the server by submitting an overly long username parameter to chat.ghp, likely due to a buffer overflow. This vulnerability carries a CVSS score of 5.0, indicating a medium severity, as it can be exploited remotely with low attack complexity and without authentication, resulting in a partial impact on availability. While not listed on the KEV catalog, exploit code is publicly available, including Metasploit modules and several ExploitDB entries, though there is minimal community discussion or media coverage surrounding this specific CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.2CPE matchmatch criteria
cpe:2.3:a:efs_software:easy_chat_server:1.2:*:*:*:*:*:*:*
2.2CPE matchmatch criteria
cpe:2.3:a:efs_software:easy_chat_server:2.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
74.70%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: EFS Easy Chat Server Authentication Request Handling Buffer Overflow · Aug 14, 2007
ExploitDB: EDB-50999 · Aug 1, 2022
This CVE's current EPSS score of 0.7470 is in the 100th percentile among its peer group of 23,690 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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