CVE-2003-0209
Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier allows...
Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier allows remote attackers to execute arbitrary code via large sequence numbers in packets, which enable a heap-based buffer overflow.
Exploit likelihood
What each source reports
NVD Score used
Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier allows remote attackers to execute arbitrary code via large sequence numbers in packets, which enable a heap-based buffer overflow.
- Record
CVE-2003-0209- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Updated
- 2026-11-02
CVE List No score
Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier allows remote attackers to execute arbitrary code via large sequence numbers in packets, which enable a heap-based buffer overflow.
- Record
CVE-2003-0209- Updated
- 2026-11-02
EUVDEUVD-2003-0204 No score
Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier allows remote attackers to execute arbitrary code via large sequence numbers in packets, which enable a heap-based buffer overflow.
- Record
EUVD-2003-0204- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hp46-mhrx-cx3g No score
Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier allows...
Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier allows remote attackers to execute arbitrary code via large sequence numbers in packets, which enable a heap-based buffer overflow.
- Record
GHSA-hp46-mhrx-cx3g- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
snortDebian:3.0 |
before 1.8.4beta1-3.1 | 1.8.4beta1-3.1 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Snort 1.9.1 - 'p7snort191.sh' Remote Command Execution | 2003-04-23 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2003-0209 is a high vulnerability (CVSS 10.0) in Sourcefire Snort, published April 16, 2003. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 38.6%, the 98th percentile. Fixed in snort 1.8.4beta1-3.1.
References
marc.info?l=bugtraq&m=105103586927007&w=2
securityfocus.com/bid/7178
cert.org/advisories/CA-2003-13.html
kb.cert.org/vuls/id/139129
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debian.org/security/2003/dsa-297
mandriva.com/security/advisories?name=MDKSA-2003:052
coresecurity.com/common/showdoc.php?idx=313&idxseccion=10
nvd.nist.gov/vuln/detail/CVE-2003-0209
github.com/advisories/GHSA-hp46-mhrx-cx3g