Sighting correlations

What the source of this sighting of CVE-2021-28550 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/40f19346-aeb9-4e0b-8e94-798c22a02503

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.