CVE-2021-38549

MIRACASE MHUB500 USB splitters through 2021-08-09, in certain specific use cases in which the device supplies power to audio-output equipment, 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. We...

CVE-2021-38549

The CVE-2021-38549 entry concerns MIRACASE MHUB500 USB splitters (affected through 2021-08-09) in specific configurations where the device powers audio-output equipment. The vulnerability arises because the power indicator LED is tied to the power line, making LED brightness correlate with power ...