usb3.0 controller (CYUSB301X) , power off surge, ESD

I used the usb3.0 controller (CYUSB301X) for USB camera.

A few days ago, cameras did not working.

I supply 5V power for usb_vbus using 5V SMPS then I found power off surge. ( max : 7~8V , 10~20 nano second )

I wonder this power off surge can give a damage to CYUSB301X ?

The operating condition of this chipset is 3.2V~6.0V .

But can give a damage to the chipset through the very short time (10~20 nano seconds , not micro second) ?

Please refer to attached picture.

Thanks.