{"id":"CVE-2004-2652","url":"https://www.cyber-defence.io/tools/cve/CVE-2004-2652","generatedAt":"2026-10-27T19:37:53.340Z","title":"The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to cause a denial of service (crash) via packets with invalid TCP/IP options, which trigger a null…","description":"The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to cause a denial of service (crash) via packets with invalid TCP/IP options, which trigger a null dereference.","published":"2004-12-31T05:00:00.000Z","lastModified":"2026-06-16T22:10:04.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":7.8,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C"},"cwe":[],"affected":["sourcefire/snort"],"epss":{"score":0.11194,"percentile":0.95925,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":2,"verified":true,"firstPublished":"2004-12-22","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":25047,"kind":"exploit","title":"Snort 2.1/2.2 - DecodeTCPOptions Remote Denial of Service (2)","url":"https://www.exploit-db.com/exploits/25047","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/25047.c","file":"exploits/linux/dos/25047.c","published":"2004-12-22","added":"2004-12-22","updated":"2013-04-28","author":"Antimatt3r","type":"dos","platform":"linux","port":null,"verified":true,"codes":["CVE-2004-2652","OSVDB-12578"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/12084/info"},{"edbId":25046,"kind":"exploit","title":"Snort 2.1/2.2 - DecodeTCPOptions Remote Denial of Service (1)","url":"https://www.exploit-db.com/exploits/25046","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/25046.c","file":"exploits/linux/dos/25046.c","published":"2004-12-22","added":"2004-12-22","updated":"2013-04-28","author":"Marcin Zgorecki","type":"dos","platform":"linux","port":null,"verified":true,"codes":["CVE-2004-2652","OSVDB-12578"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/12084/info"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.2%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://secunia.com/advisories/13664","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://securitytracker.com/id?1012656","tags":["Exploit","Patch"],"source":"cve@mitre.org"},{"url":"http://taosecurity.blogspot.com/2004/12/details-on-snort-dos-condition-you-may.html","tags":["Exploit","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.frsirt.com/exploits/20041222.angelDust.c.php","source":"cve@mitre.org"},{"url":"http://www.osvdb.org/12578","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://www.securiteam.com/exploits/6X00L20C0S.html","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/12084","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://www.snort.org/arc_news/","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/18689","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/13664","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://securitytracker.com/id?1012656","tags":["Exploit","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://taosecurity.blogspot.com/2004/12/details-on-snort-dos-condition-you-may.html","tags":["Exploit","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.frsirt.com/exploits/20041222.angelDust.c.php","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.osvdb.org/12578","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securiteam.com/exploits/6X00L20C0S.html","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/12084","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.snort.org/arc_news/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/18689","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2004-2652","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}