The installers of E START products may insecurely load Dynamic Link Libraries


The installers of E START products by GMO INSIGHT Inc. contain an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries in the folder specified by the TEMP environment variable or where the installer resides (CWE-427, CVE-2015-9267, and CVE-2015-9268).

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

CVSS V3 Severity:
Base Metrics 7.8 (High) [IPA Score]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics 6.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
Affected Products

GMO insight Inc.
  • E START Update Center Version and earlier
  • E START App Version and earlier


Arbitrary code may be executed with the privilege of the user invoking the installer.

[Use the latest installer]
Use the latest installer provided by the developer.

Users who already have installed the software do not need to re-install, because this issue affects the installers only.
Vendor Information

GMO insight Inc.
CWE (What is CWE?)

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

  1. CVE-2015-9267
  2. CVE-2015-9268

  1. JVN : JVNTA#91240916
  2. JVN : JVN#68418039
  3. JVN : JVNVU#99774191 (in Japanese)
  4. ICS-CERT ADVISORY : ICSA-23-318-02
Revision History

  • [2021/03/05]
      Web page was published
  • [2023/11/16]
      References : Contents were added