[Japanese]

JVNDB-2026-000095

Multiple vulnerabilities in the installer for Pupsman

Overview

The installer for Pupsman provided by Fuji Electric Co.,Ltd. contains multiple vulnerabilities listed below:
  • Uncontrolled search path element (CWE-427) - CVE-2026-56437
    • The CVSS vectors above assume that a victim user is directed to place a specially crafted DLL file in the same folder as the affected installer and to execute the installer.
  • Incorrect default permissions (CWE-276) - CVE-2026-57895
Kazuma Matsumoto of GMO Cybersecurity by IERAE, Inc. reported these vulnerabilities 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: Low
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS v4 Severity
Base Metrics: 8.5 (High) [IPA Score]
  • Access Vector (AV): Local
  • Attack Complexity (AC): Low
  • Attack Requirements (AT): None
  • Privileges Required (PR): Low
  • User Interaction (UI): None
    • Vulnerable System Impact
  • Confidentiality Impact (VC): High
  • Integrity Impact (VI): High
  • Availability Impact (VA): High
    • Subsequent System Impact
  • Confidentiality Impact (SC): None
  • Integrity Impact (SI): None
  • Availability Impact (SA): None
The above CVSS base scores have been assigned for CVE-2026-57895

CVSS v3 Severity
Base Metrics: 7.8(High) [IPA Score]
  • Access Vector : Local
  • Attack Complexity : Low
  • Privileges Required : None
  • User Interaction : Required
  • Scope : Unchanged
  • Confidentiality Impact : High
  • Integrity Impact : High
  • Availability Impact : High
CVSS v4 Severity
Base Metrics: 8.4 (High) [IPA Score]
  • Access Vector (AV): Local
  • Attack Complexity (AC): Low
  • Attack Requirements (AT): None
  • Privileges Required (PR): None
  • User Interaction (UI): Active
    • Vulnerable System Impact
  • Confidentiality Impact (VC): High
  • Integrity Impact (VI): High
  • Availability Impact (VA): High
    • Subsequent System Impact
  • Confidentiality Impact (SC): None
  • Integrity Impact (SI): None
  • Availability Impact (SA): None
The above CVSS base scores have been assigned for CVE-2026-56437
Affected Products


Fuji Electric Co., Ltd.
  • Pupsman versions prior to 3.9.0

Impact

  • If a crafted DLL file is placed in the same folder as the affected installer and the installer is executed, arbitrary code may be executed with SYSTEM privilege (CVE-2026-56437).
  • An attacker can place a malicious executable in the installation folder, which results in arbitrary code execution with SYSTEM privilege (CVE-2026-57895).
Solution

[Update the Software]
Use Pupsman version 3.9.0 or later, based on the information provided by the developer.
Vendor Information

Fuji Electric Co., Ltd.
CWE (What is CWE?)

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

  1. CVE-2026-56437
  2. CVE-2026-57895
References

  1. JVN : JVN#62347140
  2. JVN : JVNTA#91240916
Revision History

  • [2026/07/08]
      Web page was published

Date Public2026/07/08
Date First Published2026/07/08
Date Last Updated2026/07/08