Description

The OTA firmware update mechanism in Netun Solutions HelpFlash IoT (firmware v18_178_221102_ASCII_PRO_1R5_50) uses hard-coded WiFi credentials identical across all devices and does not authenticate update servers or validate firmware signatures. An attacker with brief physical access can activate OTA mode (8-second button press), create a malicious WiFi AP using the known credentials, and serve malicious firmware via unauthenticated HTTP to achieve arbitrary code execution on this safety-critical emergency signaling device.

INFO

Published Date :

2025-12-17T00:00:00.000Z

Last Modified :

2025-12-17T16:52:08.227Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2025-65855 vulnerability.

Vendors Products
Netun Solutions
  • Helpflash Iot
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-65855.

URL Resource
https://docs.espressif.com/projects/esp-idf/en/v4.3.2/ cve-icon cve-icon
https://luismirandaacebedo.github.io/CVE-2025-65855/ cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact