[Japanese]

JVNDB-2025-000040

KCM3100 vulnerable to authentication bypass using an alternate path or channel

Overview

KCM3100 provided by KAON is a Wi-Fi enabled gateway. KCM3100 contains the following vulnerability.

* Authentication bypass using an alternate path or channel (CWE-288) - CVE-2025-51381

Namihiko Matsumura 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 9.8 (Critical) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
Affected Products


JCOM Co., Ltd.
  • KAON KCM3100 Ver1.4.2 and earlier

Impact

An attacker may bypass the authentication of the product from within the LAN to which the product is connected.
Solution

[Update the firmware]
Update the firmware to the latest version according to the information provided by the developer.
Vendor Information

JCOM Co., Ltd.
CWE (What is CWE?)

  1. Improper Authentication(CWE-287) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2025-51381
References

  1. JVN : JVN#46288336
Revision History

  • [2025/06/18]
      Web page was published

Date Public2025/06/18
Date First Published2025/06/18
Date Last Updated2025/06/18