Installer of Vivaldi for Windows may insecurely load executable files


The installer of Vivaldi for Windows contains an issue in the file search path when loading files, which may insecurely load executable files (CWE-427).

Eiji James Yoshida of Security Professionals Network Inc. 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

Vivaldi Technologies
  • Vivaldi installer for windows prior to version 1.7.735.48


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

[Use the latest installer]
Use the latest installer according to the information provided by the developer.
Users who already have installed Vivaldi, do not need to re-install the application, because this issue affects the installer only.
Vendor Information

Vivaldi Technologies
CWE (What is CWE?)

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

  1. CVE-2017-2156

  1. JVN : JVN#71572107
  2. National Vulnerability Database (NVD) : CVE-2017-2156
Revision History

  • [2017/04/25]
      Web page was published
      References : Content was added