THREATPORT/VULNERABILITY/CVE-2008-5666
LOW SEVERITY

CVE-2008-5666

Winftp Ftp Server vulnerability

CVSS
3.5
EPSS
20.6%
EPSS pct
97th
Exploited
No known
WinFTP FTP Server 2.3.0, when passive (aka PASV) mode is used, allows remote authenticated users to cause a denial of service via a sequence of FTP sessions that include an invalid "NLST -1" command.
Affected vendor
Wftpserver
Affected product
Winftp Ftp Server
CVSS vector
AV:N/AC:M/Au:S/C:N/I:N/A:P
Weakness type (CWE)
Published
2008-12-19

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring single-factor authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 20.6% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2008-5666

  • Confirm whether Wftpserver Winftp Ftp Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2008-5666.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2008-5666

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2008-5666 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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