[Japanese]

JVNDB-2026-000103

Multiple vulnerabilities in ELECOM wireless LAN routers and access points (July 2026)

Overview

Multiple wireless LAN routers and access points provided by ELECOM CO.,LTD. contain multiple vulnerabilities listed below.
  • Reflected cross-site scripting in WebUI (CWE-79) - CVE-2026-44387
  • OS command injection in WebUI (CWE-78) - CVE-2026-59764
  • OS command injection in Restore Settings (CWE-78) - CVE-2026-61376
CVE-2026-44387
Kentaro Ishii of GMO Cybersecurity by Ierae, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

CVE-2026-59764
Hirofumi Tanabe of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

CVE-2026-61376
Rintaro Kawasugi reported this vulnerability to ELECOM CO.,LTD. and coordinated. After the coordination was completed, ELECOM CO.,LTD. reported the case to JPCERT/CC to notify users of the solution through JVN.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 7.2 (High) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: High
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS v4 Severity
Base Metrics: 8.6 (High) [IPA Score]
  • Access Vector (AV): Network
  • Attack Complexity (AC): Low
  • Attack Requirements (AT): None
  • Privileges Required (PR): High
  • 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-2026-59764

CVSS v3 Severity
Base Metrics: 7.2(High) [IPA Score]
  • Access Vector : Network
  • Attack Complexity : Low
  • Privileges Required : High
  • User Interaction : None
  • Scope : Unchanged
  • Confidentiality Impact : High
  • Integrity Impact : High
  • Availability Impact : High
CVSS v4 Severity
Base Metrics: 8.6 (High) [IPA Score]
  • Access Vector (AV): Network
  • Attack Complexity (AC): Low
  • Attack Requirements (AT): None
  • Privileges Required (PR): High
  • 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-2026-61376

CVSS v3 Severity
Base Metrics: 5.2(Medium) [IPA Score]
  • Access Vector : Adjacent NetworkNetwork
  • Attack Complexity : Low
  • Privileges Required : None
  • User Interaction : Required
  • Scope : Changed
  • Confidentiality Impact : Low
  • Integrity Impact : Low
  • Availability Impact : None
CVSS v4 Severity
Base Metrics: 5.1 (Medium) [IPA Score]
  • Access Vector (AV): Adjacent NetworkNetwork
  • Attack Complexity (AC): Low
  • Attack Requirements (AT): None
  • Privileges Required (PR): None
  • User Interaction (UI): Passive
    • Vulnerable System Impact
  • Confidentiality Impact (VC): None
  • Integrity Impact (VI): None
  • Availability Impact (VA): None
    • Subsequent System Impact
  • Confidentiality Impact (SC): Low
  • Integrity Impact (SI): Low
  • Availability Impact (SA): None
The above CVSS base scores have been assigned for CVE-2026-44387
Affected Products


ELECOM CO.,LTD.
  • WAB-I1750-PS v2.0.5 and earlier (CVE-2026-44387, CVE-2026-61376)
  • WAB-S1167-PS v2.0.5 and earlier (CVE-2026-44387, CVE-2026-61376)
  • WAB-M1775-PS v2.1.9 and earlier (CVE-2026-44387, CVE-2026-61376)
  • WAB-M2133 v2.0.5 and earlier (CVE-2026-44387, CVE-2026-61376)
  • WAB-S1775 v2.1.9 and earlier (CVE-2026-44387, CVE-2026-61376)
  • WRC-X3000GS3-B v1.06 and earlier (CVE-2026-59764)
  • WRC-X3000GS3A-B v1.06 and earlier (CVE-2026-59764)

Impact

  • An arbitrary script may be executed on a logged-in user's web browser (CVE-2026-44387).
  • An arbitrary OS command may be executed by an attacker who can log in to the product (CVE-2026-59764, CVE-2026-61376).
Solution

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

ELECOM CO.,LTD.
CWE (What is CWE?)

  1. OS Command Injection(CWE-78) [IPA Evaluation]
  2. Cross-site Scripting(CWE-79) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2026-44387
  2. CVE-2026-59764
  3. CVE-2026-61376
References

  1. JVN : JVN#56870912
Revision History

  • [2026/07/28]
      Web page was published

Date Public2026/07/28
Date First Published2026/07/28
Date Last Updated2026/07/28