How severe is CVE-2003-0321?

CVE-2003-0321 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2003-0321 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-0321?

CVE-2003-0321 affects Colten Edwards Bitchx. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2003-0321?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2003-0321 published?

CVE-2003-0321 was published on 2003-06-09 and last updated on 2026-06-16.

CVE-2003-0321

CVE-2003-0321 is a high-severity vulnerability in Colten Edwards Bitchx with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Colten Edwards Bitchx
Published: 2003-06-09
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2003-0321?: 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.
How severe is CVE-2003-0321?: CVE-2003-0321 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0321 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0321?: CVE-2003-0321 affects Colten Edwards Bitchx. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0321?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-0321 published?: CVE-2003-0321 was published on 2003-06-09 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:colten_edwards:bitchx:*:*:*:*:*:*:*:*

More vulnerabilities in Colten Edwards Bitchx

CVE-2001-0050 — Critical (CVSS 10.0): Buffer overflow in BitchX IRC client allows remote attackers to cause a denial of service and possibly execute…
CVE-2003-0322 — Medium (CVSS 5.0): Integer overflow in BitchX IRC client 1.0-0c19 and earlier allows remote malicious IRC servers to cause a denial of…
CVE-2003-0334 — Low (CVSS 2.1): BitchX IRC client 1.0c20cvs and earlier allows attackers to cause a denial of service (core dump) via certain channel…

All CVEs affecting Colten Edwards Bitchx →