CVE-2007-6738 json
pyftpdlib Use of Insufficiently Random Values of port selection on PASV command
published 2010-10-19 16 y ago modified 2026-06-16 4 mo ago also GHSA-gh7c-cg3x-pmcr , PYSEC-2010-22 , EUVD-2010-0018
- cvss
- 7.5
- version 3.1, GitHub
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
pyftpdlib before 0.1.1 does not choose a random value for the port associated with the PASV command, which makes it easier for remote attackers to obtain potentially sensitive information about the number of in-progress data connections by reading the response to this command.
Patch / fix
Exploit prediction
1.13% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | pyftpdlib | <0.1.1 |
0.1.1 |
Classification
- Weakness
-
- CWE-330 Use of Insufficiently Random Values
References
-
github.com
/giampaolo/pyftpdlib/commit/d171bdc4ef7ac769671946a8a3e5eaafc39a9202
web
-
code.google.com
/p/pyftpdlib/source/browse/trunk/HISTORY
web
-
nvd.nist.gov
/vuln/detail/CVE-2007-6738
advisory
-
github.com
/giampaolo/pyftpdlib
package
-
github.com
/pypa/advisory-database/tree/main/vulns/pyftpdlib/PYSEC-2010-22.yaml
web
-
github.com
/advisories/GHSA-gh7c-cg3x-pmcr
advisory
Sources
- CVE List CVE-2007-6738
- GitHub Advisory GHSA-gh7c-cg3x-pmcr
- NVD CVE-2007-6738
- OSV PYSEC-2010-22
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.