{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-29T01:04:35.456","vulnerabilities":[{"cve":{"id":"CVE-2021-41104","sourceIdentifier":"security-advisories@github.com","published":"2021-09-28T16:15:08.413","lastModified":"2024-11-21T06:25:28.620","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"ESPHome is a system to control the ESP8266/ESP32. Anyone with web_server enabled and HTTP basic auth configured on version 2021.9.1 or older is vulnerable to an issue in which `web_server` allows over-the-air (OTA) updates without checking user defined basic auth username & password. This issue is patched in version 2021.9.2. As a workaround, one may disable or remove `web_server`."},{"lang":"es","value":"ESPHome es un sistema para controlar el ESP8266/ESP32. Cualquiera que tenga web_server habilitado y la autenticación básica HTTP configurada en la versión 2021.9.1 o anterior, es vulnerable a un problema en el que \"web_server\" permite actualizaciones over-the-air (OTA) sin comprobar el nombre de usuario y la contraseña de autenticación básica definidos por el usuario. Este problema ha sido parcheado en la versión 2021.9.2. Como solución, se puede deshabilitar o eliminar \"web_server\""}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:P/A:N","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-306"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-306"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:esphome:esphome_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"2021.9.2","matchCriteriaId":"731C3CD3-0010-4AD8-9622-D7B79FB08EE5"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:espressif:esp32:-:*:*:*:*:*:*:*","matchCriteriaId":"D1024B06-380B-4116-B7F9-A21A03534B0C"},{"vulnerable":false,"criteria":"cpe:2.3:h:espressif:esp8266:-:*:*:*:*:*:*:*","matchCriteriaId":"0A1C8D90-B27E-4E82-8A72-E1FF3FABA1A0"}]}]}],"references":[{"url":"https://github.com/esphome/esphome/pull/2409/commits/207cde1667d8c799a197b78ca8a5a14de8d5ca1e","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/esphome/esphome/releases/tag/2021.9.2","source":"security-advisories@github.com","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/esphome/esphome/security/advisories/GHSA-48mj-p7x2-5jfm","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/esphome/esphome/pull/2409/commits/207cde1667d8c799a197b78ca8a5a14de8d5ca1e","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/esphome/esphome/releases/tag/2021.9.2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/esphome/esphome/security/advisories/GHSA-48mj-p7x2-5jfm","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]}]}}]}