Sighting correlations

What the source of this sighting of CVE-2019-17621 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/5c5b3d2a-edd6-42f4-8e75-910a8c1f51be

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.