K2Editor may insecurely load executable files


K2Editor may use unsafe methods for determining how to load executables (.exe).

K2Editor is a text editor. K2Editor loads certain executables (.exe) when opening the folder that contains the text file that is being edited. K2Editor contains an issue with the file search path, which may insecurely load executables.

Makoto Shiotsuki reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
Base Metrics 5.1 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: High
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
Affected Products

K2 Software
  • K2Editor r.1.5.8 and earlier


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 Information

K2 Software
  • K2 Software's Page : Top Page (Japanese)
CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2010-3156

  1. JVN : JVN#36921800
  2. National Vulnerability Database (NVD) : CVE-2010-3156
  3. US-CERT Technical Cyber Security Alert : TA10-238A
Revision History

  • [2010/10/20]
      Web page published