CVE Feed

    Dashboard / CVE / CVE-2025-57808

    CVE-2025-57808

    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.

    Published:Sep 2, 2025
    Last Modified:Sep 10, 2025
    EPS:Sep 2, 2025
    EPSS Score:0.00026
    CVSS Score:8.1

    Affected Products

    Vendor
    Esphome
    Product
    Esphome
    Vendor
    Esphome
    Product
    Esphome Firmware

    Exploits

    https://github.com/esphome/esphome/security/advisories/GHSA-mxh2-ccgj-8635https://github.com/esphome/esphome/security/advisories/GHSA-mxh2-ccgj-8635

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-90 Reflection Attack in Authentication Protocol

    Related CVEs

    CVE-2026-71260 (CVSS 6.5) — ESPHome through 2026.7.0-dev discloses plaintext passwords via its web_server component. In WebServer::text_js…
    CVE-2026-71259 (CVSS 8.6) — ESPHome through 2026.7.0-dev contains an operator-precedence bug in the cv.url validator in esphome/config_val…
    CVE-2026-23833 (CVSS 1.7) — ESPHome is a system to control microcontrollers remotely through Home Automation systems. In versions 2025.9.0…
    CVE-2024-29019 (CVSS 8.1) — ESPHome is a system to control microcontrollers remotely through Home Automation systems. API endpoints in das…
    CVE-2024-27287 (CVSS 6.5) — ESPHome is a system to control your ESP8266/ESP32 for Home Automation systems. Starting in version 2023.12.9 a…
    CVE-2024-27081 (CVSS 7.2) — ESPHome is a system to control your ESP8266/ESP32. A security misconfiguration in the edit configuration file …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High