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Join us on July 15 for the next exciting episode!

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runZero to join Dragos, creating an industry-transforming security platform backed by $4B Accenture investment. More →

Exposure Management Platform
Complete security visibility across IT, OT, IoT, cloud, mobile, and remote assets.
Asset Fingerprinting & Contextualization
runZero employs a multi-faceted approach to perform high-fidelity fingerprinting for IT, OT, and IoT assets – no agents or credentials required.
Integrations
runZero seamlessly integrates with a wide variety of tools, enhancing network visibility, enriching asset data, and uncovering control gaps.
Community Edition
Our completely free version of the runZero Platform is ideal for home use and environments with fewer than 100 assets.

Advanced toplogy, attack path mapping & deep OT intelligence!

With our latest release you can see exactly how an attacker could move through your network, allowing you to harden critical choke points and remediate exposures before they are exploited. Plus we expanded our OT telemetry to provide deep insights into the role and risk profile of every device.

Learn More

Solutions
Gain visibility, control the unknowns, and ensure compliance with confidence.
Regulatory Compliance
Ensure compliance and stay resilient against evolving cyber threats.
- CSRB
- DORA
- NIST CSF & 800-171
- NIS2
- NYDFS
- PCI DSS

Analyst Perspective: GigaOm 2026 Radar for OT Security

This new report evaluates security solutions designed specifically for industrial environments, focusing on purpose-built capabilities that can be safely deployed in fragile OT environments. runZero is positioned as a Challenger & Fast Mover in the Innovation/Platform Play quadrant. Read the report for GigaOm’s full take!

Read the Report

Resource Center
Dive into a treasure trove of resources to expand your exposure management knowledge.
runZero Research
Explore the world of exposure management through the runZero lens.
runZero Blog
See what's happening at runZero and read up on the latest ideas, opinions, and articles from our experts and researchers.
Support Resources
Everything you need to maximize your experience with the runZero Platform.

Watch the runZero Day replay!

The inaugural runZero Day livestream was one for the books! From the inner workings of the CVE program and modern cyber journalism to the realities of OT security and the startup investment ecosystem, our wonderful guests helped us cover the trends that are defining our industry.

Watch the Replay

Our Customers
Our customers are everything. We're super proud to be trusted by leading organizations around the globe to help them improve their security.
Case Studies
See how runZero has empowered security teams to take control of their networks, uncover their unknowns, and save significant time and money.
Testimonials
Read reviews of the runZero Platform and see how teams have improved their security with our technology.

Case Study: How runZero established North Carolina’s K–12 exposure management program

Learn how runZero became the foundation for exposure management across 343 North Carolina Public School Units.

Read the Case Study

About Us
Wondering who the heck are these people? Meet the team and get the story behind runZero... once upon a time called Rumble.
Events
Track down runZero Yetis in the wild! Join us in-person or virtually at one of our upcoming events.
Investors
Meet the cybersecurity investors, trailblazers, and innovators who help us navigate our journey and the evolving security landscape.
Newsroom
Read the latest articles, announcements, and press releases from runZero.
Careers
Want to join our forces? We're looking for bright minds and passionate souls who want to write the next chapter in exposure management.

Join us on July 15 for the next exciting episode!

Every month, our research team does a deep dive into the ones and zeros behind all things exposure, from new threats and risky devices to the most secretive, silent, and unheard of vulnerabilities hiding in IT, OT, IoT, remote, cloud, and mobile environments – see you there!

Register Now

Infinity Partner Program
See how we can work together to provide best-in-class security solutions and outcomes for our joint customers.
Partner Directory
Explore our directory of trusted (and awesome) partners.
Partner Sign In
Sign in to our Infinity Partner Portal.

Join our Infinity Partner Program

Designed with a partner-first mindset, the runZero Infinity Partner Program offers incredibly valuable resources, relationships, and rewards to partners who choose to grow their business with us.

Become a runZero Partner

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Latest AutomationDirect MB-GATEWAY vulnerability
What is the impact?
Are any updates or workarounds available?
How do I find AutomationDirect MB-GATEWAY Modbus gateways with runZero?

How to find AutomationDirect Modbus Gateways on your network

Matthew Kienow

|

Updated May 22, 2025, 6:18pm EDT

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"

Written by Matthew Kienow

Matthew Kienow is a software engineer and security researcher. Matthew previously worked on the Recog recognition framework, AttackerKB as well as Metasploit's MSF 5 APIs. He has also designed, built, and successfully deployed many secure software solutions; however, often he enjoys breaking them instead. He has presented his research at various security conferences including DerbyCon, Hack In Paris, and CarolinaCon. His research has been cited by CSO, Threatpost and SC Magazine.

More about Matthew Kienow

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