Sighting correlations

What the source of this sighting of CVE-2017-7921 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/359d5740-171e-45a1-ad87-283811cfe5b9

Drag nodes to arrange them. Double-click a vulnerability to open it. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows vulnerabilities by sighting type.