Latest AutomationDirect MB-GATEWAY vulnerability #
A vulnerability has been disclosed in AutomationDirect MB-GATEWAY Modbus gateways. This vulnerability in the embedded web server allows unrestricted remote access to the device. This device is no longer supported by the vendor and will not receive updates, including security patches.
This vulnerability has been designated CVE-2025-36535 and has a CVSS score of 10.0 (critical).
What is the impact? #
Successful exploitation of this vulnerability could lead to configuration changes, operational disruption, or arbitrary code execution depending on the environment and exposed functionality.
Are any updates or workarounds available? #
This device is no longer supported by the vendor and users are encouraged to discontinue their use. If this is not possible, users are strongly recommended to implement network access controls to limit access to these devices to trusted networks.
How do I find AutomationDirect MB-GATEWAY Modbus gateways with runZero? #
From the Asset Inventory, use the following query to locate potentially impacted assets:
hw:="Automation Direct Modbus Gateway"About runZero
runZero, a network discovery and asset inventory solution, was founded in 2018 by HD Moore, the creator of Metasploit. HD envisioned a modern active discovery solution that could find and identify everything on a network–without credentials. As a security researcher and penetration tester, he often employed benign ways to get information leaks and piece them together to build device profiles. Eventually, this work led him to leverage applied research and the discovery techniques developed for security and penetration testing to create runZero.
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