FKIE_CVE-2025-57808

Vulnerability from fkie_nvd - Published: 2025-09-02 01:15 - Updated: 2025-09-10 19:03
Severity ?
8.1 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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.
References
security-advisories@github.comhttps://github.com/esphome/esphome/commit/2aceb56606ec8afec5f49c92e140c8050a6ccbe5Patch
security-advisories@github.comhttps://github.com/esphome/esphome/security/advisories/GHSA-mxh2-ccgj-8635Exploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/esphome/esphome/security/advisories/GHSA-mxh2-ccgj-8635Exploit, Vendor Advisory
Impacted products
Vendor Product Version
esphome esphome_firmware 2025.8.0
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:esphome:esphome_firmware:2025.8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "043D5139-3E62-4597-BD47-56968524D8CE",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ESPHome is a system to control microcontrollers remotely through Home Automation systems. In version 2025.8.0 in the ESP-IDF platform, ESPHome\u0027s 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."
    }
  ],
  "id": "CVE-2025-57808",
  "lastModified": "2025-09-10T19:03:00.280",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
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        "impactScore": 5.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
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  "published": "2025-09-02T01:15:29.947",
  "references": [
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      "tags": [
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-303"
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      "source": "security-advisories@github.com",
      "type": "Secondary"
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      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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