CVE-2009-4775

Exp

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.

Published: 2010-04-21 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4775 is rated Exploit Available (59.4/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.61%, 92th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-4775

EDB-ID Source Kind Published Link
9607 exploit_db edb 2009-09-09 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-4775

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 18.04% 5.61% -12.44%
2 2026-05-07 14.23% 18.04% +3.81%
3 2026-03-06 — 14.23% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4775

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2009-4775

Affected software / configurations for CVE-2009-4775

Vendor Product Version Raw CPE
ipswitch ws_ftp 12.0 cpe:2.3:a:ipswitch:ws_ftp:12.0:-:home:*:*:*:*:*
ipswitch ws_ftp 12.0 cpe:2.3:a:ipswitch:ws_ftp:12.0:-:pro:*:*:*:*:*
ipswitch ws_ftp 12.0.1 cpe:2.3:a:ipswitch:ws_ftp:12.0.1:-:home:*:*:*:*:*
ipswitch ws_ftp 12.0.1 cpe:2.3:a:ipswitch:ws_ftp:12.0.1:-:pro:*:*:*:*:*

References for CVE-2009-4775

cvelogic Threat Intelligence