CVE-2025-57808 (GCVE-0-2025-57808)

Vulnerability from cvelistv5 – Published: 2025-09-02 00:26 – Updated: 2025-09-02 14:03
VLAI
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)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-02 14:03 UTC
CWE
  • CWE-303 - Incorrect Implementation of Authentication Algorithm
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7637 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
esphome esphome Affected: = 2025.8.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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