CVEvulnerability

CVE-2025-65855

6.6 MEDIUM Published 2025-12-17 Modified 2026-10-13 Official page ↗
Status
Analyzed
Published
2025-12-17
Last modified
2026-10-13
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
6.6 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-319, CWE-494, CWE-798

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 configurations

• netun helpflash iot firmware 18 178 221102 ascii pro 1r5 50

Related

Weakness · CWE (3)

  • CWE-319 Cleartext Transmission of Sensitive Information weakness
  • CWE-494 Download of Code Without Integrity Check weakness
  • CWE-798 Use of Hard-coded Credentials weakness

References