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Fencer Vulns
medium 6.4

CVE-2006-2173 json

Buffer overflow in FileZilla FTP Server 2.2.22 allows remote authenticated attackers to cause a denial of service and possibly execute arbi…

published 2006-05-04 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-2174

cvss
6.4
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.7%
EPSS 6.7% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known, plus a Nuclei check

Summary

Buffer overflow in FileZilla FTP Server 2.2.22 allows remote authenticated attackers to cause a denial of service and possibly execute arbitrary code via a long (1) PORT or (2) PASS followed by the MLSD command, or (2) the remote server interface, as demonstrated by the Infigo FTPStress Fuzzer.

Exploit prediction

6.65% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template FileZilla FTP Server 2.2.22 - Buffer Overflow nuclei detection template
  • infigo.hr http://www.infigo.hr/en/in_focus/tools referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:N/I:P/A:P

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.