Sighting correlations

What the source of this sighting of CVE-2021-21973 filed sightings of.

Source: https://db.gcve.eu/known-exploited-vulnerabilities-catalog/2b5c4193-556d-4ea6-a2b8-928ec22b567a

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.