1. Symantec-Broadcom-Horizontal/
  2. Security Response/
  3. Attack Signatures/
  4. Attack: ABB MicroSCADA "wserver.exe" RCE

Attack: ABB MicroSCADA "wserver.exe" RCE

Severity: High

This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.


This signature detects an attempt of leveraging a stack corruption in the ABB MicroSCADA 'wserver.exe' component which may leads to remote code execution.

Additional Information

ABB MicroSCADA is a system for real-time monitoring and control of primary and secondary equipment.

ABB MicroSCADA is prone to a code-execution vulnerability because it fails to properly bounds check user-supplied input. Specifically, this issue occurs due to stack corruption in the 'wserver.exe' component.

Attackers can exploit this issue to execute arbitrary code in the context of the affected application.


  • MicroSCADA, COM 500 4.1, 4.2
  • MicroSCADA, SYS 500 8.4.5
  • MicroSCADA Pro, SYS 600 9.0, 9.1, 9.1.5, 9.2, 9.3, 9.3 FP1, 9.3 FP2

Additional References

  • Twitter
  • Facebook
  • LinkedIn
  • Google+
  • YouTube