Sighting correlations

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

Source: https://db.gcve.eu/known-exploited-vulnerabilities-catalog/b323ea4a-44fa-4659-b6b2-3695d69237e9

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.