Filtered by vendor Logitech Subscriptions
Filtered by product S120 Subscriptions
Total 1 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2021-38547 1 Logitech 4 S120, S120 Firmware, Z120 and 1 more 2024-11-21 5.9 Medium
Logitech Z120 and S120 speakers through 2021-08-09 allow remote attackers to recover speech signals from an LED on the device, via a telescope and an electro-optical sensor, aka a "Glowworm" attack. The power indicator LED of the speakers is connected directly to the power line, as a result, the intensity of a device's power indicator LED is correlative to the power consumption. The sound played by the speakers affects their power consumption and as a result is also correlative to the light intensity of the LEDs. By analyzing measurements obtained from an electro-optical sensor directed at the power indicator LEDs of the speakers, we can recover the sound played by them.