Sighting correlations

What the source of this sighting of CNVD-2021-49564 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/12107853-e1f8-4031-84ea-c8105ed20f02

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.