# CVE-2002-2438

## Summary

- **CVE ID:** CVE-2002-2438
- **Severity:** UNKNOWN
- **CVSS Score:** 0.31
- **CWE:** CWE-287
- **Published:** May 18, 2021
- **Last Modified:** Mar 16, 2026

## Description

TCP firewalls could be circumvented by sending a SYN Packets with other flags (like e.g. RST flag) set, which was not correctly discarded by the Linux TCP stack after firewalling.

## Affected Products

- n/a — kernel (before Linux kernel 2.4.20)

## References

- [CNA](http://www.openwall.com/lists/oss-security/2012/05/30/8)
- [CNA](http://www.openwall.com/lists/oss-security/2012/05/30/4)
- [CNA](http://www.openwall.com/lists/oss-security/2012/05/30/12)
- [CNA](http://www.openwall.com/lists/oss-security/2012/05/30/11)
- [CNA](http://www.openwall.com/lists/oss-security/2012/05/30/13)
- [CNA](http://www.openwall.com/lists/oss-security/2012/02/03/7)
- [CNA](http://www.openwall.com/lists/oss-security/2012/05/29/8)
- [CNA](http://www.openwall.com/lists/oss-security/2014/02/12/8)
- [CNA](http://www.openwall.com/lists/oss-security/2012/05/30/9)
- [CNA](http://www.openwall.com/lists/oss-security/2012/05/31/3)
- [CNA](http://www.openwall.com/lists/oss-security/2012/05/30/2)
- [CNA](https://www.kb.cert.org/vuls/id/464113)
- [CNA](https://www.kb.cert.org/vuls/id/464113%2C)
- [CNA](https://bugzilla.suse.com/show_bug.cgi?id=744994%2C)
- [CNA](https://www.openwall.com/lists/oss-security/2012/02/03/7)
- [CNA](https://security.netapp.com/advisory/ntap-20210727-0003/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 6.20%
- **EPSS Percentile:** 90.7

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