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.
References
| Link | Resource |
|---|---|
| https://docs.espressif.com/projects/esp-idf/en/v4.3.2/ | Product |
| https://luismirandaacebedo.github.io/CVE-2025-65855/ | Third Party Advisory |
Configurations
Configuration 1 (hide)
| AND |
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History
06 Jan 2026, 15:09
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Netun
Netun helpflash Iot Firmware Netun helpflash Iot |
|
| CPE | cpe:2.3:h:netun:helpflash_iot:-:*:*:*:*:*:*:* cpe:2.3:o:netun:helpflash_iot_firmware:18_178_221102_ascii_pro_1r5_50:*:*:*:*:*:*:* |
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| References | () https://docs.espressif.com/projects/esp-idf/en/v4.3.2/ - Product | |
| References | () https://luismirandaacebedo.github.io/CVE-2025-65855/ - Third Party Advisory |
17 Dec 2025, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-12-17 17:15
Updated : 2026-01-06 15:09
NVD link : CVE-2025-65855
Mitre link : CVE-2025-65855
CVE.ORG link : CVE-2025-65855
JSON object : View
Products Affected
netun
- helpflash_iot_firmware
- helpflash_iot