# CVE-2003-0321

## Summary

- **CVE ID:** CVE-2003-0321
- **Severity:** UNKNOWN
- **CVSS Score:** 0.05
- **CWE:** N/A
- **Published:** May 22, 2003
- **Last Modified:** Mar 16, 2026

## Description

Multiple buffer overflows in BitchX IRC client 1.0-0c19 and earlier allow remote malicious IRC servers to cause a denial of service (crash) and possibly execute arbitrary code via long hostnames, nicknames, or channel names, which are not properly handled by the functions (1) send_ctcp, (2) cannot_join_channel, (3) cluster, (4) BX_compress_modes, (5) handle_oper_vision, and (6) ban_it.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](http://www.securityfocus.com/bid/7096)
- [CNA](http://security.debian.org/pool/updates/main/i/ircii-pana/ircii-pana_1.0-0c16-2.1.diff.gz)
- [CNA](http://www.securityfocus.com/bid/7097)
- [CNA](http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000655)
- [CNA](http://marc.info/?l=bugtraq&m=104852615211913&w=2)
- [CNA](http://www.debian.org/security/2003/dsa-306)
- [CNA](http://marc.info/?l=bugtraq&m=104766521328322&w=2)
- [CNA](http://www.securityfocus.com/bid/7100)
- [CNA](http://www.securityfocus.com/bid/7099)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.22%
- **EPSS Percentile:** 78.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._