CVE-2007-6741: n/a vulnerability

CVE-2007-6741: The ftp_PORT function in FTPServer.py in pyftpdlib before 0.2.0 does not prevent TCP connections to privile...

The ftp_PORT function in FTPServer.py in pyftpdlib before 0.2.0 does not prevent TCP connections to privileged ports if the destination IP address matches the source IP address of the connection from the FTP client, which might allow remote authenticated users to conduct FTP bounce attacks via crafted FTP data, as demonstrated by an FTP bounce attack against a NAT server, a related issue to CVE-1999-0017.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 19:47 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2007-6741 affects older pyftpdlib FTP server code before version 0.2.0. An authenticated FTP user may be able to abuse active FTP behavior to make the server initiate unintended TCP connections, a classic FTP bounce risk. The sources do not show active exploitation or a severity score. Exposure is likely limited to systems running pyftpdlib before 0.2.0 and allowing authenticated FTP users. Internet-facing FTP services, NAT-adjacent deployments, or embedded products using old pyftpdlib deserve review. The source metadata does not identify specific downstream products. Treat this as a targeted legacy FTP exposure issue. It is not marked as actively exploited, but old FTP services can create network pivot risk. Prioritize remediation where pyftpdlib-backed FTP is internet-facing, supports many users, or sits near sensitive internal networks. Mitigation focus: Upgrade pyftpdlib to version 0.2.0 or later where feasible.; Check current pyftpdlib or downstream vendor guidance for supported fixes.; Restrict FTP access to trusted users and networks where possible..

Prepared: Jun 28, 2026, 01:40 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 19, 2010, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

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Weakness

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