ICS Alert (ICS-ALERT-11-245-01)

Advantech BroadWin WebAccess ActiveX Vulnerabilities

Click to Tweet.
Click to send to Facebook.
Click to Share.

Legal Notice

All information products included in https://us-cert.cisa.gov/ics are provided "as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.



ICS-CERT has become aware of two publicly disclosed vulnerabilities with and proof of concept code affecting the Advantech BroadWin WebAccess Client, a web browser-based human-machine interface (HMI) product. The public disclosure indicates that these vulnerabilities are remotely exploitable. ICS-CERT has contacted and is coordinating this information with Advantech to validate and confirm this report.

Specifically, the two disclosed vulnerabilities are:

  • A format string vulnerability
  • A memory corruption vulnerability

ICS-CERT will provide additional information as it becomes available. Please report any issues affecting control systems in critical infrastructure environments to ICS-CERT.


ICS-CERT published the follow-up advisory ICSA-12-047-01 Advantech WebAccess Vulnerabilities to the ICS-CERT Web site on February 16, 2012.


Advantech BroadWin WebAccess is a web-based HMI platform used in energy, manufacturing, and building automation applications. WebAccess is installed in several countries in Asia, North America, North Africa, and the Middle East.

Contact Information

For any questions related to this report, please contact the CISA at:

Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:  https://us-cert.cisa.gov/ics 
or incident reporting:  https://us-cert.cisa.gov/report

CISA continuously strives to improve its products and services. You can help by choosing one of the links below to provide feedback about this product.

This product is provided subject to this Notification and this Privacy & Use policy.

Please share your thoughts.

We recently updated our anonymous product survey; we'd welcome your feedback.