Published:2014/09/04  Last Updated:2014/09/04

EmFTP may insecurely load executable files


EmFTP provided by Emurasoft, Inc. may use unsafe methods for determining how to load executables (.exe)

Products Affected

  • EmFTP Standard
  • EmFTP Professional


EmFTP contains a flaw when loading files, where an unitended executable file may be loaded when attempting to open a file without an extension. For example, if a text file named "exmaple" (without an extension) and an executable "example.exe" are in the same directory, attemtping to open the file "example" will result in the execution of "example.exe".


An attacker may execute arbitrary code with the privilege of the vulnerable application.


Apply a workaround
EmFTP development has ended. The developer recommends the following workaround.

When opening local files, do not use EmFTP. Use Run command or Windows Explorer.

Vendor Status

Vendor Status Last Update Vendor Notes
Emurasoft Vulnerable 2014/09/04


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2014.09.04 (CVSS Base Metrics)

What is CVSS?

Measures Severity Description
Access Vector(AV) Local (L) Adjacent Network (A) Network (N) A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable".
Access Complexity(AC) High (H) Medium (M) Low (L) Specialized access conditions exist.
Authentication(Au) Multiple (M) Single (S) None (N) Authentication is not required to exploit the vulnerability.
Confidentiality Impact(C) None (N) Partial (P) Complete (C) There is considerable informational disclosure. Access to some system files is possible, but the attacker does not have control over what is obtained, or the scope of the loss is constrained.
Integrity Impact(I) None (N) Partial (P) Complete (C) Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.
Availability Impact(A) None (N) Partial (P) Complete (C) There is reduced performance or interruptions in resource availability.

Base Score:5.1


Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2014-3910
JVN iPedia JVNDB-2014-000103