Tenable has discovered a critical vulnerability in Siemens STEP 7 TIA Portal, design and automation software for industrial control systems.
![Renaud Deraison, Tenable](https://www.tahawultech.com/wp-content/uploads/2019/05/Renaud-Deraison-co-founder-and-chief-technology-officer-Tenable-840x440.jpg)
Tenable has discovered a critical vulnerability in Siemens STEP 7 TIA Portal, design and automation software for industrial control systems.
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