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Fencer Vulns
critical 10.0

CVE-2001-0053 in the critical feed json

One-byte buffer overflow in replydirname function in BSD-based ftpd allows remote attackers to gain root privileges.

published 2001-02-12 25 y ago modified 2026-06-16 4 mo ago also EUVD-2001-0053

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
17.9%
EPSS 17.9% chance of exploitation in 30 days, percentile 97%
public exploits
2
Exploit-DB

Summary

One-byte buffer overflow in replydirname function in BSD-based ftpd allows remote attackers to gain root privileges.

Patch / fix

Timeline

  1. First public exploit (EDB-20512)
  2. Published

Exploit prediction

17.93% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-20512 BSD ftpd 0.3.2 - Single Byte Buffer Overflow remote, 2000-12-18
  • EDB-234 OpenBSD ftpd 2.6/2.7 - Remote Overflow remote, 2000-12-20
  • securityfocus.com http://www.securityfocus.com/bid/2124 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.