Sighting correlations

What the source of this sighting of CVE-2021-21975 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/3a424ad4-d7ad-4f8c-8e13-c3cba5699a1c

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.