Sighting correlations

What the source of this sighting of CVE-2017-5521 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/c78a4ae6-1067-4147-8915-8d389d901333

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.