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CVE-2007-6740

pyftpdlib vulnerable to allocation of resources without limits

4.0 MediumFix available

The ftp_STOU function in FTPServer.py in pyftpdlib before 0.2.0 does not limit the number of attempts to discover a unique filename, which might allow remote authenticated users to cause a denial of service via a STOU command.

Exploit likelihood

1.75%Up 0.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 4.0

The ftp_STOU function in FTPServer.py in pyftpdlib before 0.2.0 does not limit the number of attempts to discover a unique filename, which might allow remote authenticated users to cause a denial of service via a STOU command.

Record
CVE-2007-6740
CVSS 2.0
4.0 MediumAV:N/AC:L/Au:S/C:N/I:N/A:P
Weakness
CWE-264
Updated
2026-11-02
CVE List No score

The ftp_STOU function in FTPServer.py in pyftpdlib before 0.2.0 does not limit the number of attempts to discover a unique filename, which might allow remote authenticated users to cause a denial of service via a STOU command.

Record
CVE-2007-6740
Updated
2026-11-02
EUVDEUVD-2010-0020 No score

The ftp_STOU function in FTPServer.py in pyftpdlib before 0.2.0 does not limit the number of attempts to discover a unique filename, which might allow remote authenticated users to cause a denial of service via a STOU command.

Record
EUVD-2010-0020
Updated
2026-11-03
GitHub AdvisoriesGHSA-cx59-cp6c-9fr8 7.1

pyftpdlib vulnerable to allocation of resources without limits

The ftp_STOU function in FTPServer.py in pyftpdlib before 0.2.0 does not limit the number of attempts to discover a unique filename, which might allow remote authenticated users to cause a denial of service via a STOU command.

Record
GHSA-cx59-cp6c-9fr8
CVSS 4.0
7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02
OSVGHSA-cx59-cp6c-9fr8 7.1

pyftpdlib vulnerable to allocation of resources without limits

The ftp_STOU function in FTPServer.py in pyftpdlib before 0.2.0 does not limit the number of attempts to discover a unique filename, which might allow remote authenticated users to cause a denial of service via a STOU command.

Record
GHSA-cx59-cp6c-9fr8
CVSS 4.0
7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02
OSVPYSEC-2010-24 No score

The ftp_STOU function in FTPServer.py in pyftpdlib before 0.2.0 does not limit the number of attempts to discover a unique filename, which might allow remote authenticated users to cause a denial of service via a STOU command.

Record
PYSEC-2010-24
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
pyftpdlib
PyPI
before 0.2.0
0.2.0

History

History
RecordedChangedSources
aliasesEUVD
affected, aliases, cwes, facts, references, titleGitHub Advisories, OSV
first indexedCVE List, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2007-6740 is a medium vulnerability (CVSS 4.0) in G.rodola Pyftpdlib, published October 19, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.75%, the 77th percentile. Fixed in pyftpdlib 0.2.0.

References

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