CVE-2007-4909

Exp

Interpretation conflict in WinSCP before 4.0.4 allows remote attackers to perform arbitrary file transfers with a remote server via file-transfer commands in the final portion of a (1) scp, and possibly a (2) sftp or (3) ftp, URL, as demonstrated by a URL specifying login to the remote server with a username of scp, which is interpreted as an HTTP scheme name by the protocol handler in a web browser, but is interpreted as a username by WinSCP. NOTE: this is related to an incomplete fix for CVE-2006-3015.

Published: 2007-09-17 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-4909 is rated High Exploit Risk (85.7/100): CVSS Critical severity, with high exploitation likelihood (EPSS 14.07%, 94th percentile). 1 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-2007-4909

EDB-ID Source Kind Published Link
30582 exploit_db edb 2007-09-13 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2007-4909

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 2026-05-06 13.61% 14.07% +0.46%
2 2025-03-30 18.46% 13.61% -4.86%
3 2025-03-29 — 18.46% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-4909

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C 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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2007-4909

Affected software / configurations for CVE-2007-4909

Vendor Product Version Raw CPE
winscp winscp 2.0.0 cpe:2.3:a:winscp:winscp:2.0.0:*:*:*:*:*:*:*
winscp winscp 3.5.5_beta cpe:2.3:a:winscp:winscp:3.5.5_beta:*:*:*:*:*:*:*
winscp winscp 3.5.6 cpe:2.3:a:winscp:winscp:3.5.6:*:*:*:*:*:*:*
winscp winscp 3.6 cpe:2.3:a:winscp:winscp:3.6:*:*:*:*:*:*:*
winscp winscp 3.6.1 cpe:2.3:a:winscp:winscp:3.6.1:*:*:*:*:*:*:*
winscp winscp 3.6.5_beta cpe:2.3:a:winscp:winscp:3.6.5_beta:*:*:*:*:*:*:*
winscp winscp 3.6.6 cpe:2.3:a:winscp:winscp:3.6.6:*:*:*:*:*:*:*
winscp winscp 3.6.7 cpe:2.3:a:winscp:winscp:3.6.7:*:*:*:*:*:*:*
winscp winscp 3.8.1 cpe:2.3:a:winscp:winscp:3.8.1:*:*:*:*:*:*:*
winscp winscp 3.8.2 cpe:2.3:a:winscp:winscp:3.8.2:*:*:*:*:*:*:*
winscp winscp 4.0.2 cpe:2.3:a:winscp:winscp:4.0.2:*:*:*:*:*:*:*
winscp winscp 4.0.3 cpe:2.3:a:winscp:winscp:4.0.3:*:*:*:*:*:*:*

References for CVE-2007-4909

cvelogic Threat Intelligence