CVE-2025-41729
BaseFortify
Publication date: 2025-11-24
Last updated on: 2025-11-24
Assigner: CERT VDE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| janitza_electronics | umg_96-pa-mid+ | * |
| janitza_electronics | umg_96-pa | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-1287 | The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-41729 is a vulnerability in the Modbus interface of Janitza electronics GmbH devices UMG 96-PA and UMG 96-PA-MID+ with firmware versions earlier than 3.54. An unauthenticated remote attacker can send a specially crafted Modbus read command that causes a denial of service (DoS), making the device stop responding and its measurement functions cease until it is restarted. This is due to improper validation of input. [1]
How can this vulnerability impact me? :
This vulnerability can impact you by causing a denial of service on affected devices, rendering them unavailable and stopping their measurement functionalities. This disruption can affect operations relying on these devices until they are restarted or patched. [1]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection can involve monitoring for unusual Modbus read commands that cause the device to stop responding. Since the vulnerability is triggered by specially crafted Modbus read commands, network traffic analysis tools can be used to capture and inspect Modbus traffic for anomalies. Specific commands to detect this vulnerability are not provided in the resources. However, using tools like Wireshark to filter Modbus TCP traffic (e.g., filter: modbus) or using network intrusion detection systems configured to alert on abnormal Modbus read requests may help identify exploitation attempts. [1]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include operating the affected devices within a closed network protected by a suitable firewall, restricting network access to only necessary components, and securing Modbus protocol communications to prevent unauthorized access. The definitive fix is to update the device firmware to version 3.54 or later, which resolves the vulnerability. [1]