CVE-2009-1759

Stack-based buffer overflow in the btFiles::BuildFromMI function (trunk/btfiles.cpp) in Enhanced...

9.3 HighPublic exploitFix available

Stack-based buffer overflow in the btFiles::BuildFromMI function (trunk/btfiles.cpp) in Enhanced CTorrent (aka dTorrent) 3.3.2 and probably earlier, and CTorrent 1.3.4, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Torrent file containing a long path.

Exploit likelihood

13.7%Down 10.7 points since Feb 4, 2022

What each source reports

NVD Score used 9.3

Record: CVE-2009-1759
CVSS 2.0: 9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-1759
Updated: 2026-11-02

EUVDEUVD-2009-1754 No score

Record: EUVD-2009-1754
Updated: 2026-11-03

GitHub AdvisoriesGHSA-chfx-pv5j-438m No score

Stack-based buffer overflow in the btFiles::BuildFromMI function (trunk/btfiles.cpp) in Enhanced...

Record: GHSA-chfx-pv5j-438m
Weakness: CWE-119
Updated: 2026-11-02

OSV No score

Record: CVE-2009-1759
Updated: 2026-11-02

OSVDEBIAN-CVE-2009-1759 No score

Record: DEBIAN-CVE-2009-1759
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`ctorrent` Debian:12	before 1.3.4-dnh3.2-1.1	1.3.4-dnh3.2-1.1
`ctorrent` Debian:13	before 1.3.4-dnh3.2-1.1	1.3.4-dnh3.2-1.1
`ctorrent` Debian:14	before 1.3.4-dnh3.2-1.1	1.3.4-dnh3.2-1.1
`ctorrent` Debian:5.0	before 1.3.4-dnh3.2-1+lenny1, plus listed versions 1.3.4-dnh3.2-1	1.3.4-dnh3.2-1+lenny1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	cTorrent/DTorrent - '.torrent' Local Buffer Overflow	2009-04-17

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD, OSV

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

In short

CVE-2009-1759 is a high vulnerability (CVSS 9.3) in Rahul Ctorrent, published May 22, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 13.7%, the 96th percentile. Fixed in ctorrent 1.3.4-dnh3.2-1.1.

References

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