CVE-2025-65855
6.6
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 0.7 / Impact: 5.9
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
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.
Affected (1)
Products: Netun: Helpflash Iot Firmware
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| Version 18_178_221102_ascii_pro_1r5_50 |
| Running on/with | Platform Versions |
|---|---|
Netun Helpflash Iot | All versions |
Related CWEs
CWE-319
Cleartext Transmission of Sensitive Information
The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.
CWE-494
Download of Code Without Integrity Check
The product downloads source code or an executable from a remote location and executes the code without sufficiently verifying the origin and integrity of the code.
CWE-798
Use of Hard-coded Credentials
The product contains hard-coded credentials, such as a password or cryptographic key.
References (2)
Timeline
No history available yet.