CVE-2004-2652
The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows…
- 7.8HighCVSS base score
- 11.2%Exploitation in 30 daysEPSS · top 4.0% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 2Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list 2 Exploit-DB entries for it.
Show the exploits2
Exploit-DB2 entries
- Snort 2.1/2.2 - DecodeTCPOptions Remote Denial of Service (1) (Exploit-DB entry) (opens in a new tab)
EDB-ID 25046dos, linuxpublished 22 Dec 2004Verified
- Snort 2.1/2.2 - DecodeTCPOptions Remote Denial of Service (2) (Exploit-DB entry) (opens in a new tab)
EDB-ID 25047dos, linuxpublished 22 Dec 2004Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 19 years later
· 19 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 11.2% · top 4.0% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
n/a
- affected n/a
References
9
- 1012656 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://www.frsirt.com/exploits/20041222.angelDust.c.php (opens in a new tab)x_refsource_MISCx_transferred
- snort-tcpip-printing-dos(18689) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 12084 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.securiteam.com/exploits/6X00L20C0S.html (opens in a new tab)x_refsource_MISCx_transferred
- 12578 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- http://www.snort.org/arc_news/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 13664 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://taosecurity.blogspot.com/2004/12/details-on-snort-dos-condition-you-may.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2004-2642 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2004-2652)Record last updated .