Docomo L-04D mobile WiFi router vulnerable to cross-site request forgery


L-04D provided by NTT DOCOMO, INC. is a wireless WiFi router. L-04D contains a cross-site request forgery vulnerability in the the web management screen.

Atsuo Sakurai of Cyber Defense Institute, 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 4.3 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: None
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 2.6 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: High
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

LG Electronics
  • L-04D firmware version V10a and V10b


If a user views a malicious page while logged-in, unintended operations may be conducted.

[Update the firmware]
Update the firmware according to the information provided by NTT DOCOMO, INC.
Vendor Information

CWE (What is CWE?)

  1. Cross-Site Request Forgery(CWE-352) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2016-4854

  1. JVN : JVN#46351856
  2. National Vulnerability Database (NVD) : CVE-2016-4854
Revision History

  • [2016/10/03]
      Web page was published
      References : Content was added