# CVE-2003-0209

## Summary

- **CVE ID:** CVE-2003-0209
- **Severity:** UNKNOWN
- **CVSS Score:** 2.3
- **CWE:** N/A
- **Published:** Apr 16, 2003
- **Last Modified:** Mar 16, 2026

## Description

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.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](http://marc.info/?l=bugtraq&m=105103586927007&w=2)
- [CNA](http://www.securityfocus.com/bid/7178)
- [CNA](http://www.cert.org/advisories/CA-2003-13.html)
- [CNA](http://marc.info/?l=bugtraq&m=105043563016235&w=2)
- [CNA](http://marc.info/?l=bugtraq&m=105172790914107&w=2)
- [CNA](http://www.kb.cert.org/vuls/id/139129)
- [CNA](http://www.debian.org/security/2003/dsa-297)
- [CNA](http://marc.info/?l=bugtraq&m=105111217731583&w=2)
- [CNA](http://www.mandriva.com/security/advisories?name=MDKSA-2003:052)
- [CNA](http://www.coresecurity.com/common/showdoc.php?idx=313&idxseccion=10)
- [CNA](http://marc.info/?l=bugtraq&m=105154530427824&w=2)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 57.43%
- **EPSS Percentile:** 98.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._