CVE-2009-4775

Format string vulnerability in Ipswitch WS_FTP Professional 12 before 12.2 allows remote...

4.3 MediumPublic exploit

Format string vulnerability in Ipswitch WS_FTP Professional 12 before 12.2 allows remote attackers to cause a denial of service (crash) via format string specifiers in the status code portion of an HTTP response.

Exploit likelihood

5.61%Up 1.1 points since Feb 4, 2022

What each source reports

NVD Score used 4.3

Record: CVE-2009-4775
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-134
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-4775
Updated: 2026-11-02

EUVDEUVD-2009-4738 No score

Record: EUVD-2009-4738
Updated: 2026-11-03

GitHub AdvisoriesGHSA-cqjc-hxf6-jx3w No score

Format string vulnerability in Ipswitch WS_FTP Professional 12 before 12.2 allows remote...

Record: GHSA-cqjc-hxf6-jx3w
Weakness: CWE-134
Updated: 2026-11-02

Affected products

ipswitch ws ftp

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Ipswitch WS_FTP 12 Professional - Remote Format String (PoC)	2009-09-09

History

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

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

In short

CVE-2009-4775 is a medium vulnerability (CVSS 4.3) in Ipswitch Ws Ftp, published April 21, 2010. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 5.61%, the 92nd percentile. No source names a fixed version.