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Fencer Vulns
critical 9.8

CVE-2018-7573 in the critical feed json

An issue was discovered in FTPShell Client 6.7.

published 2018-03-01 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19298

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
69.2%
EPSS 69.2% chance of exploitation in 30 days, percentile 99.3%
public exploits
3
Metasploit, Exploit-DB

Summary

An issue was discovered in FTPShell Client 6.7. A remote FTP server can send 400 characters of 'F' in conjunction with the FTP 220 response code to crash the application; after this overflow, one can run arbitrary code on the victim machine. This is similar to CVE-2009-3364 and CVE-2017-6465.

Timeline

  1. First public exploit (Metasploit exploit/windows/ftp/ftpshell_cli_bof)
  2. Published

Exploit prediction

69.20% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/windows/ftp/ftpshell_cli_bof FTPShell client 6.70 (Enterprise edition) Stack Buffer Overflow metasploit exploit, normal rank, 2017-03-04
  • EDB-44968 FTPShell Client 6.70 (Enterprise Edition) - Stack Buffer Overflow (Metasploit) remote, 2018-07-02
  • EDB-44596 FTPShell Client 6.7 - Buffer Overflow remote, 2018-05-08
  • cxsecurity.com https://cxsecurity.com/issue/WLB-2018030011 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.