Sighting correlations

What the source of this sighting of CVE-2021-27876 filed sightings of.

Source: https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/7419638e-8c69-458c-876e-1571df9fcc8c

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.