Sighting correlations

What the source of this sighting of CVE-2021-27137 filed sightings of.

Source: https://db.gcve.eu/known-exploited-vulnerabilities-catalog/4506ea66-f896-44ce-a99e-74867905cb26

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.