Sighting correlations

What the source of this sighting of CVE-2021-21307 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/7c8d92a7-0370-4a56-aa3b-dcee7547f80b

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.