https://vulnerability.circl.lu/sightings/feed 2026-06-11T07:22:59.821928+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent sightings. https://vulnerability.circl.lu/sighting/b298b805-9834-4c91-a102-87b160e3687c/export 2026-06-11T07:23:00.205196+00:00 Automation user https://vulnerability.circl.lu/user/automation {"uuid": "b298b805-9834-4c91-a102-87b160e3687c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-38543", "type": "seen", "source": "https://t.me/cibsecurity/27173", "content": "\u203c CVE-2021-38543 \u203c\n\nTP-Link UE330 USB splitter devices 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 assume that the USB splitter supplies power to some speakers. The power indicator LED of the USB splitter is connected directly to the power line, as a result, the intensity of the USB splitter's power indicator LED is correlative to its power consumption. The sound played by the connected speakers affects the USB splitter's power consumption and as a result is also correlative to the light intensity of the LED. By analyzing measurements obtained from an electro-optical sensor directed at the power indicator LED of the USB splitter, we can recover the sound played by the connected speakers.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-08-11T20:50:48.000000Z"} 2021-08-11T20:50:48+00:00