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Critical VDE-2025-059 8 CVEs

Helmholz: Multiple vulnerabilities in REX 100

Published Jul 21, 2025 · Updated Jul 21, 2025

Vendor: MB connect line Product: REX 100

Summary

Multiple vulnerabilities in all REX 100 devices with firmware <= 2.3.2 that allow an attacker to gain full control over the device.

Details

Impact
Full control over the device is possible in various ways. For details see CVE description.

Remediation
Update to latest version: 2.3.3

Vulnerabilities 8

  • High 7.2
    CVE-2025-41673

    Remote Command Injection in send_sms Action Due to Improper Input Neutralization

    A high privileged remote attacker can execute arbitrary system commands via POST requests in the send_sms action due to improper neutralization of special elements used in an OS command.

    MB connect line Helmholz mbNET.mini REX 100
  • High 7.2
    CVE-2025-41674

    Remote Command Injection in diagnostic Action Due to Improper Input Neutralization

    A high privileged remote attacker can execute arbitrary system commands via POST requests in the diagnostic action due to improper neutralization of special elements used in an OS command.

    MB connect line Helmholz mbNET.mini REX 100
  • High 7.2
    CVE-2025-41675

    Remote Command Injection via GET in Cloud Server Communication Script Due to Improper Input Neutralization

    A high privileged remote attacker can execute arbitrary system commands via GET requests in the cloud server communication script due to improper neutralization of special elements used in an OS command.

    MB connect line Helmholz mbNET.mini REX 100
  • Medium 6.5
    CVE-2025-41678

    SQL Injection via POST Requests Allowing Configuration Database Manipulation

    A high privileged remote attacker can alter the configuration database via POST requests due to improper neutralization of special elements used in a SQL statement.

    MB connect line Helmholz mbNET.mini REX 100
  • Medium 5.3
    CVE-2025-41679

    Unauthenticated Buffer Overflow in Conftool Service Leading to Denial of Service

    An unauthenticated remote attacker could exploit a buffer overflow vulnerability in the device causing a denial of service that affects only the network initializing wizard (Conftool) service.

    MB connect line Helmholz mbNET.mini REX 100
  • Medium 4.9
    CVE-2025-41676

    Resource Exhaustion via POST Requests to send-sms Action

    A high privileged remote attacker can exhaust critical system resources by sending specifically crafted POST requests to the send-sms action in fast succession.

    MB connect line Helmholz mbNET.mini REX 100
  • Medium 4.9
    CVE-2025-41677

    Resource Exhaustion via POST Requests to send-mail Action

    A high privileged remote attacker can exhaust critical system resources by sending specifically crafted POST requests to the send-mail action in fast succession.

    MB connect line Helmholz mbNET.mini REX 100
  • Medium 4.8
    CVE-2025-41681

    Persistent Cross-Site Scripting via POST Requests Due to Improper Neutralization of Input

    A high privileged remote attacker can gain persistent XSS via POST requests due to improper neutralization of special elements used to create dynamic content.

    MB connect line Helmholz mbNET.mini REX 100

Revision history

  1. #1

    Initial revision.

References