Published:2014/07/02  Last Updated:2014/07/02

SX-2000WG vulnerable to denial-of-service (DoS)


SX-2000WG contains a denial-of-service (DoS) vulnerability.

Note that this vulnerability is different from JVN#35998716.

Products Affected

  • SX-2000WG firmware versions prior to 1.5.4


SX-2000WG provided by silex technology, Inc. is a product that provides wireless connectivity for USB devices such as printers and hard disk drives (HDD). SX-2000WG contains an issue in the processing of TCP Option header, which may cause a denial-of-service (DoS).


A remote attacker may cause the product to stop responding.


Update the Firmware
Update to the latest version of firmware according to the information provided by the developer.

Vendor Status

Vendor Link
silex technology, Inc. Firmware Download


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2014.07.02 (CVSS Base Metrics)

What is CVSS?

Measures Severity Description
Access Vector(AV) Local (L) Adjacent Network (A) Network (N) A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable".
Access Complexity(AC) High (H) Medium (M) Low (L) Specialized access conditions or extenuating circumstances do not exist.
Authentication(Au) Multiple (M) Single (S) None (N) Authentication is not required to exploit the vulnerability.
Confidentiality Impact(C) None (N) Partial (P) Complete (C) There is no impact to the confidentiality of the system.
Integrity Impact(I) None (N) Partial (P) Complete (C) There is no impact to the integrity of the system.
Availability Impact(A) None (N) Partial (P) Complete (C) There is reduced performance or interruptions in resource availability.

Base Score:5.0


Network Security Class Students, Teaching Assistants, and Mentors of Security Camp 2013 reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2014-3889
JVN iPedia JVNDB-2014-000065