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.

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Fixes

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History

Tue, 06 Jan 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Netun
Netun helpflash Iot
Netun helpflash Iot Firmware
CPEs cpe:2.3:h:netun:helpflash_iot:-:*:*:*:*:*:*:*
cpe:2.3:o:netun:helpflash_iot_firmware:18_178_221102_ascii_pro_1r5_50:*:*:*:*:*:*:*
Vendors & Products Netun
Netun helpflash Iot
Netun helpflash Iot Firmware

Thu, 18 Dec 2025 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Netun Solutions
Netun Solutions helpflash Iot
Vendors & Products Netun Solutions
Netun Solutions helpflash Iot

Wed, 17 Dec 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 17 Dec 2025 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-319
CWE-494
CWE-798
Metrics cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Wed, 17 Dec 2025 16:30:00 +0000

Type Values Removed Values Added
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.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-12-17T16:52:08.227Z

Reserved: 2025-11-18T00:00:00.000Z

Link: CVE-2025-65855

cve-icon Vulnrichment

Updated: 2025-12-17T16:49:58.115Z

cve-icon NVD

Status : Analyzed

Published: 2025-12-17T17:15:50.657

Modified: 2026-01-06T15:09:16.853

Link: CVE-2025-65855

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-12-18T09:57:30Z

Weaknesses