Sighting correlations

What the source of this sighting of CNVD-2021-30167 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/f9a19282-62c9-44c7-b048-18861d057ff9

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.