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4 vulnerabilities found for esphome_firmware by esphome
CVE-2025-57808 (GCVE-0-2025-57808)
Vulnerability from nvd – Published: 2025-09-02 00:26 – Updated: 2025-09-02 14:03
VLAI
EPSS
VEX
Title
ESP-IDF web_server basic auth bypass using empty or incomplete Authorization header
Summary
ESPHome is a system to control microcontrollers remotely through Home Automation systems. In version 2025.8.0 in the ESP-IDF platform, ESPHome's web_server authentication check can pass incorrectly when the client-supplied base64-encoded Authorization value is empty or is a substring of the correct value. This allows access to web_server functionality (including OTA, if enabled) without knowing any information about the correct username or password. This issue has been patched in version 2025.8.1.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-303 - Incorrect Implementation of Authentication Algorithm
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/esphome/esphome/security/advis… | x_refsource_CONFIRM |
| https://github.com/esphome/esphome/commit/2aceb56… | x_refsource_MISC |
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CVE-2021-41104 (GCVE-0-2021-41104)
Vulnerability from nvd – Published: 2021-09-28 15:15 – Updated: 2024-08-04 02:59
VLAI
EPSS
VEX
Title
web_server allows OTA update without checking user defined basic auth username & password
Summary
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`.
Severity
7.5 (High)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/esphome/esphome/security/advis… | x_refsource_CONFIRM |
| https://github.com/esphome/esphome/pull/2409/comm… | x_refsource_MISC |
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CVE-2025-57808 (GCVE-0-2025-57808)
Vulnerability from cvelistv5 – Published: 2025-09-02 00:26 – Updated: 2025-09-02 14:03
VLAI
EPSS
VEX
Title
ESP-IDF web_server basic auth bypass using empty or incomplete Authorization header
Summary
ESPHome is a system to control microcontrollers remotely through Home Automation systems. In version 2025.8.0 in the ESP-IDF platform, ESPHome's web_server authentication check can pass incorrectly when the client-supplied base64-encoded Authorization value is empty or is a substring of the correct value. This allows access to web_server functionality (including OTA, if enabled) without knowing any information about the correct username or password. This issue has been patched in version 2025.8.1.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-303 - Incorrect Implementation of Authentication Algorithm
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/esphome/esphome/security/advis… | x_refsource_CONFIRM |
| https://github.com/esphome/esphome/commit/2aceb56… | x_refsource_MISC |
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CVE-2021-41104 (GCVE-0-2021-41104)
Vulnerability from cvelistv5 – Published: 2021-09-28 15:15 – Updated: 2024-08-04 02:59
VLAI
EPSS
VEX
Title
web_server allows OTA update without checking user defined basic auth username & password
Summary
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`.
Severity
7.5 (High)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/esphome/esphome/security/advis… | x_refsource_CONFIRM |
| https://github.com/esphome/esphome/pull/2409/comm… | x_refsource_MISC |
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"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 \u0026 password. This issue is patched in version 2021.9.2. As a workaround, one may disable or remove `web_server`."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-306: Missing Authentication for Critical Function"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/esphome/esphome/security/advisories/GHSA-48mj-p7x2-5jfm",
"refsource": "CONFIRM",
"url": "https://github.com/esphome/esphome/security/advisories/GHSA-48mj-p7x2-5jfm"
},
{
"name": "https://github.com/esphome/esphome/pull/2409/commits/207cde1667d8c799a197b78ca8a5a14de8d5ca1e",
"refsource": "MISC",
"url": "https://github.com/esphome/esphome/pull/2409/commits/207cde1667d8c799a197b78ca8a5a14de8d5ca1e"
},
{
"name": "https://github.com/esphome/esphome/releases/tag/2021.9.2",
"refsource": "MISC",
"url": "https://github.com/esphome/esphome/releases/tag/2021.9.2"
}
]
},
"source": {
"advisory": "GHSA-48mj-p7x2-5jfm",
"discovery": "UNKNOWN"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2021-41104",
"datePublished": "2021-09-28T15:15:11.000Z",
"dateReserved": "2021-09-15T00:00:00.000Z",
"dateUpdated": "2024-08-04T02:59:31.350Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}