Published:2010/10/21  Last Updated:2010/10/22

TeraPad may insecurely load dynamic libraries


TeraPad may use unsafe methods for determining how to load DLLs.

Products Affected

  • TeraPad Ver.0.93 and earlier


TeraPad is a text editor. TeraPad loads certain DLL's when TXT files are opened. TeraPad contains an issue with the DLL search path, which may lead to insecurely loading dynamic libraries.


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


Update the Software
Update to the latest version according to the information provided by the developer.

Vendor Status

Vendor Status Last Update Vendor Notes
Susumu Terao vulnerable 2010/10/21


  1. US-CERT Vulnerability Note VU#707943
    Microsoft Windows based applications may insecurely load dynamic libraries
  2. IPA
    Security Alert for Vulnerability in TeraPad

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2010.10.21

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Mid
Exploit Complexity the user must be convinced to take a difficult or suspicious action. If the honest user must have elevated privileges, they are likely to be more suspiciouse
  • High

Description of each analysis measures


Makoto Shiotsuki reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2010-3161
JVN iPedia JVNDB-2010-000045

Update History

Published in English.