SEIL Series routers vulnerable to denial-of-service (DoS)


The PPP Access Concentrator (PPPAC) and the Dial-Up Networking in SEIL Series routers provided by Internet Initiative Japan Inc. contain a denial-of-service (DoS) vulnerability due to an issue in processing certain packets (CWE-119).

Note that this vulnerability is different from JVN#21907573.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
Base Metrics 5.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Partial
Affected Products

Internet Initiative Japan Inc.
  • SEIL/B1 1.00 to 4.62
  • SEIL/neu 2FE Plus 1.82 to 2.18
  • SEIL/Turbo 1.82 to 2.18
  • SEIL/X1 1.00 to 4.62
  • SEIL/X2 1.00 to 4.62
  • SEIL/x86 Fuji 1.00 to 3.22


By receiving a specially crafted packet, the device may be rebooted.

[Update the Firmware]
Apply the appropriate firmware update provided by the developer.
Vendor Information

Internet Initiative Japan Inc.
CWE (What is CWE?)

  1. Buffer Errors(CWE-119) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2014-7256

  1. JVN : JVN#04895240
  2. National Vulnerability Database (NVD) : CVE-2014-7256
Revision History

  • [2014/12/01]
      Web page was published
      References : Content was added