{"id":"CVE-2004-2466","aliases":["EUVD-2004-2457","GHSA-c4gx-wr5p-7v7x"],"status":"published","title":"chat.ghp in Easy Chat Server 1.2 allows remote attackers to cause a denial of service (server...","description":"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.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.74696,"percentile":0.99505,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2004-12-31T05:00:00Z","modified":"2026-06-16T22:09:42Z","exploits":[{"source":"exploitdb","id":"EDB-16772","title":"EFS Easy Chat Server - Authentication Request Handling Buffer Overflow (Metasploit)","type":"remote","platform":"windows","date":"2010-08-06","verified":true,"url":"https://www.exploit-db.com/exploits/16772"},{"source":"exploitdb","id":"EDB-33326","title":"EFS Easy Chat Server 3.1 - Remote Stack Buffer Overflow","type":"remote","platform":"windows","date":"2014-05-12","verified":true,"url":"https://www.exploit-db.com/exploits/33326"},{"source":"exploitdb","id":"EDB-4289","title":"EFS Easy Chat Server 2.2 - Remote Denial of Service","type":"dos","platform":"windows","date":"2007-08-14","verified":true,"url":"https://www.exploit-db.com/exploits/4289"},{"source":"exploitdb","id":"EDB-50999","title":"Easy Chat Server 3.1 - Remote Stack Buffer Overflow (SEH)","type":"remote","platform":"windows","date":"2022-08-01","url":"https://www.exploit-db.com/exploits/50999"},{"source":"metasploit","id":"exploit/windows/http/efs_easychatserver_username","title":"EFS Easy Chat Server Authentication Request Handling Buffer Overflow","type":"exploit","platform":"Windows","date":"2007-08-14","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/http/efs_easychatserver_username"}],"products":[{"vendor":"efs_software","product":"easy_chat_server"}],"references":[{"url":"http://www.securityfocus.com/bid/25328","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.securityfocus.com/bid/67384","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://secunia.com/advisories/58427","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/36013","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.exploit-db.com/exploits/33326","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2004-07/0077.html","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Exploit","Vendor Advisory"]},{"url":"http://secunia.com/advisories/12006","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Exploit","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/16629","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.autistici.org/fdonato/advisory/EasyChatServer1.2-adv.txt","tags":["x_refsource_MISC","x_transferred","Exploit","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2007/2901","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://secunia.com/advisories/26461","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"https://www.exploit-db.com/exploits/4289","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://www.osvdb.org/7416","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","Exploit"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2004-07/0013.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Exploit","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/167892/Easy-Chat-Server-3.1-Buffer-Overflow.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-2466"},{"url":"https://github.com/advisories/GHSA-c4gx-wr5p-7v7x"}],"sources":{"cve":[{"id":"CVE-2004-2466","description":"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.","status":"published","published":"2005-08-20T04:00:00Z","modified":"2024-08-08T01:29:13.444Z","updated_at":"2026-11-02T14:34:53.357376Z"}],"euvd":[{"id":"EUVD-2004-2457","description":"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.","status":"published","published":"2005-08-20T04:00:00Z","modified":"2024-08-08T01:29:13Z","updated_at":"2026-11-03T01:15:10.453137Z"}],"ghsa":[{"id":"GHSA-c4gx-wr5p-7v7x","title":"chat.ghp in Easy Chat Server 1.2 allows remote attackers to cause a denial of service (server...","description":"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.","status":"published","published":"2022-04-29T03:01:29Z","modified":"2023-01-27T05:02:40Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:42:04.742793Z"}],"nvd":[{"id":"CVE-2004-2466","description":"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.","status":"published","published":"2004-12-31T05:00:00Z","modified":"2026-06-16T22:09:42.263Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:00:53.133049Z"}]}}