Sighting correlations

What the source of this sighting of CVE-2016-4437 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/eff6202a-36f4-4b2a-b44a-6adf1223bc82

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.