Sighting correlations

What the source of this sighting of CVE-2021-28149 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/439cfc4f-8c8a-4dc1-ad4b-1af056a3f9c7

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.