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Medium VDE-2025-094 1 CVE

Janitza: Vulnerability in Modbus interface of UMG 96-PA and UMG 96-PA-MID+

Published Nov 24, 2025 · Updated Nov 24, 2025

Vendor: Janitza Product: UMG 96-PA Product: UMG 96-PA-MID+

Summary

A vulnerability in the devices UMG 96-PA and UMG 96-PA-MID+ enables an unauthenticated remote attacker to cause the device to become unavailable.

Details

Impact
When exploiting the vulnerability the device becomes unavailable. It will not continue to work as expected including not responding to further requests. Additionally it's measurement functionalities stop working effectively making the device unavailable until the next restart.

Mitigation
It is strongly advised to operate the device in a closed network protected by a suitable firewall. Network access to the device should be limited to only enable necessary components to access it. Special focus should be on the Modbus protocol as the core communication protocol of the device.

Remediation
It is strongly advised to update to the newest version. The vulnerability is fixed in version 3.54.

Vulnerabilities 1

  • High 7.5
    CVE-2025-41729

    DoS via Modbus Read Command

    An unauthenticated remote attacker can send a specially crafted Modbus read command to the device which leads to a denial of service.

    Janitza UMG 96-PA-MID+ UMG 96-PA

Revision history

  1. #1.0.0

    Initial release.

References