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CVE-2001-0050

49
FAUCET Score

CVE-2001-0050 describes a critical buffer overflow vulnerability in the BitchX IRC client, specifically affecting versions like 1.0 c17. This flaw allows remote attackers to trigger a denial of service or potentially execute arbitrary code by sending an IP address that resolves to an excessively long DNS hostname or domain name. The vulnerability carries a CVSS score of 10.0 (HIGH), indicating a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. Its FAUCET Risk Score of 98/100 further emphasizes its critical nature. While not listed on the CISA KEV catalog or Hot List, exploit code for this vulnerability is publicly available on ExploitDB (EDB-20490). The CVE has garnered significant community discussion, with 10 mentions, suggesting awareness among security researchers despite no active Metasploit or Nuclei modules.

Impacted Technologies

VendorProductVersion(s)CPE
1.0c17CPE matchmatch criteria
cpe:2.3:a:colten_edwards:bitchx:1.0c17:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
14.57%
Probability of exploitation in next 30 days
EPSS Percentile
96.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-20490 · Dec 4, 2000
This CVE's current EPSS score of 0.1457 is in the 94th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2001-0050

security flaw

Dec 7, 2000

References

ftp.freebsd.org / pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:78.bitchx.v1.1.asc
archives.neohapsis.com / archives/bugtraq/2000-12/0081.html
Exploit
archives.neohapsis.com / archives/bugtraq/2000-12/0086.html
Exploit
distro.conectiva.com.br / atualizacoes
exchange.xforce.ibmcloud.com / vulnerabilities/5701
linux-mandrake.com / en/security/2000/MDKSA-2000-079.php3
redhat.com / support/errata/RHSA-2000-126.html
securityfocus.com / bid/2087
ExploitPatchVendor Advisory