Press release
QNAP Security Fixes GNU Bash Security Issues for Legacy VioStor NVR Models

Taipei, Taiwan, November 3, 2014 – QNAP® Security today released a new firmware Build 8221 with GNU Bash security patch update for legacy VioStor NVR models running firmware v3.5.0, v3.6.0, v4.0.0, and v4.2.0.

This release has fixed the GNU Bash Environment Variable Command Injection Vulnerability (CVE-2014-6271, CVE-2014-7169, CVE-2014-6277, CVE-2014-6278, CVE-2014-7186 and CVE-2014-7187), also known as “Shellshock,” that can allow attackers to gain remote control over UNIX/Linux-based systems. Users of the following VioStor NVR models are strongly advised to update their VioStor NVR with the new firmware.

Model name (firmware version):

  • VS-2004L (v4.2.0) / VS-2008L (v4.2.0)
  • VS-2008 (v3.6.0)/ VS-2012 (v3.6.0)
  • VS-4016U (v3.6.0)
  • VS-5012 (v3.5.0) / VS-5020 (v3.5.0)
  • VS-8024(v4.0.0) / VS-8024U/(v4.0.0) / VS-8032(v4.0.0) / VS-8032U(v4.0.0) / VS-8040 (v4.0.0) / VS-8040U (v4.0.0)

This new firmware Build 8221 can be installed in the following steps:

  1. Select your model and download firmware Build 8221 from the QNAP Security website (
  2. Go to “System Configuration > System tools > System Update” to select and apply the firmware
  3. Click “Update System”

Users with further questions can contact QNAP Technical Support at:


About QNAP System Inc.

QNAP Systems, Inc., as its brand promise "Quality Network Appliance Provider", aims to deliver comprehensive offerings of cutting edge network attached storage (NAS) and network video recorder (NVR) solutions featured with ease-of-use, robust operation, large storage capacity, and trustworthy reliability. QNAP integrates technologies and designs to bring forth quality products that effectively improve business efficiency on file sharing, virtualization applications, storage management and surveillance in the business environments, as well as enrich entertainment life for home users with the offering of a fun multimedia center experience. Headquartered in Taipei, QNAP delivers its solutions to the global market with nonstop innovation. More information is at

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