Sixnet BT Series Firmware and Software Security Update

Number: AV16-086
Date: 29 May 2016


The purpose of this advisory is to bring attention to a Sixnet BT Series firmware and software security update released by Red Lion Controls.


Red Lion Controls released a firmware and software security update for Sixnet BT series M2M cellular routers to address a hard-coded credentials vulnerability.  An attacker could remotely exploit this vulnerability by using the hard-coded factory password to gain full access to affected devices.

Affected versions:
Sixnet BT-5xxx and BT-6xxx series M2M cellular routers versions prior to 3.8.21.

CVE Reference: CVE-2016-4521

Suggested Action

CCIRC recommends that system administrators test and deploy the vendor-released updates to affected applications accordingly.


ICS-CERT Advisory (ICSA-16-147-02)

Sixnet Industrial Wireless Software and Firmware

Note to Readers

In support of Public Safety's mission to build a safe and resilient Canada, CCIRC's mandate is to help ensure the security and resilience of the vital non-federal government cyber systems that underpin Canada's national security, public safety and economic prosperity. As Canada's computer security incident response team, CCIRC is Canada's national coordination centre for the prevention and mitigation of, preparedness for, response to, and recovery from cyber incidents on non-federal government systems. It does this by providing authoritative advice and support, and coordinating information sharing and incident response.

Please note, CCIRC PGP key has recently been updated.

For general information, please contact Public Safety Canada's Public Affairs division at:

Telephone: 613-944-4875 or 1-800-830-3118
Fax: 613-998-9589

Date modified: