{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T07:32:11.361","vulnerabilities":[{"cve":{"id":"CVE-2021-38547","sourceIdentifier":"cve@mitre.org","published":"2021-08-11T16:15:07.350","lastModified":"2024-11-21T06:17:24.667","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"Los altavoces Logitech Z120 y S120 hasta el 09-08-2021, permiten a atacantes remotos recuperar las señales de voz de un LED del dispositivo, por medio de un telescopio y un sensor electro-óptico, también se conoce como un ataque \"Glowworm\". El LED indicador de potencia de los altavoces está conectado directamente a la línea eléctrica, por lo que la intensidad del LED indicador de potencia de un dispositivo es correlativa al consumo de energía. El sonido reproducido por los altavoces afecta a su consumo de energía y, en consecuencia, también es correlativo a la intensidad luminosa de los LED. Al analizar las medidas obtenidas por un sensor electro-óptico dirigido a los LEDs indicadores de potencia de los altavoces, podemos recuperar el sonido reproducido por los mismos"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:N/A:N","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:logitech:z120_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2021-08-09","matchCriteriaId":"ECA6FDD8-ADA8-40A0-9B58-81982AE7D57F"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:logitech:z120:-:*:*:*:*:*:*:*","matchCriteriaId":"263A9BD4-5F9D-45ED-AF2B-7530BBA8466B"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:logitech:s120_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2021-08-09","matchCriteriaId":"4CBC80F0-8805-413B-B321-465CA916C47B"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:logitech:s120:-:*:*:*:*:*:*:*","matchCriteriaId":"0C70F72D-B8CE-4817-8E82-7BFFDBD69814"}]}]}],"references":[{"url":"https://www.nassiben.com/glowworm-attack","source":"cve@mitre.org","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.nassiben.com/glowworm-attack","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"]}]}}]}