Rockwell Automation Redundancy Module Configuration Tool

TL;DR

View CSAF Summary Successful exploitation of these vulnerabilities could allow for an attacker to escalate and execute processes with administrator privileges. The following versions of Rockwell Automation Redundancy Module Configuration Tool are affected: Redundancy Module Configuration Tool 10.00.00 (CVE-2026-9633) Redundancy Module Configuration Tool >=9.00.00|<=10.00.00 (CVE-2026-9634) CVSS Vendor Equipment Vulnerabilities

v3 7.3 Rockwell Automation Rockwell Automation Redundancy Module Configuration Tool Incorrect Default Permissions

Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-9633 A security issue exists within the Redundancy Module Configuration Tool. The RM3ConfigTool.exe binary searches directories in the system path for a required DLL, and one or more of these directories may be writable by standard (non administrator) users due to incorrect default permissions. If a local attacker places a malicious DLL in such a directory and an administrator subsequently runs the tool, the malicious DLL is loaded into the elevated process and executes with Administrator/SYSTEM privileges. View CVE Details Affected Products Rockwell Automation Redundancy Module Configuration Tool Vendor: Rockwell Automation Product Version: Rockwell Automation Redundancy Module Configuration Tool: 10.00.00 Product Status: known_affected Remediations Vendor fix Rockwell Automation has released Redundancy Module Configuration Tool version 10.01.00 for users to install. Mitigation Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices (https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight). https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation F

What Happened

Rockwell Automation Redundancy Module Configuration Tool, reported by CISA.

View CSAF Summary Successful exploitation of these vulnerabilities could allow for an attacker to escalate and execute processes with administrator privileges. The following versions of Rockwell Automation Redundancy Module Configuration Tool are affected: Redundancy Module Configuration Tool 10.00.00 (CVE-2026-9633) Redundancy Module Configuration Tool >=9.00.00|<=10.00.00 (CVE-2026-9634) CVSS Vendor Equipment Vulnerabilities

v3 7.3 Rockwell Automation Rockwell Automation Redundancy Module Configuration Tool Incorrect Default Permissions

Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-9633 A security issue exists within the Redundancy Module Configuration Tool. The RM3ConfigTool.exe binary searches directories in the system path for a required DLL, and one or more of these directories may be writable by standard (non administrator) users due to incorrect default permissions. If a local attacker places a malicious DLL in such a directory and an administrator subsequently runs the tool, the malicious DLL is loaded into the elevated process and executes with Administrator/SYSTEM privileges. View CVE Details Affected Products Rockwell Automation Redundancy Module Configuration Tool Vendor: Rockwell Automation Product Version: Rockwell Automation Redundancy Module Configuration Tool: 10.00.00 Product Status: known_affected Remediations Vendor fix Rockwell Automation has released Redundancy Module Configuration Tool version 10.01.00 for users to install. Mitigation Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices (https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight). https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation F

For the full technical details, see the original report.

Why It Matters for Businesses

This development could affect organizations that rely on the impacted technologies or services. Unpatched systems, misconfigured infrastructure, or lack of monitoring can leave businesses exposed to exploitation, data breaches, and regulatory penalties.

How to Check Your Exposure

Run a free scan on NEL Professional's Cyber Risk Scanner to check whether your domain is affected. The scan covers SSL/TLS, security headers, DNS configuration, email authentication, and more across 16 modules.

Check Your Domain Security

Mitigation Steps

• Patch immediately, Apply vendor patches or updates as soon as they are available.
• Review configurations, Check firewall rules, access controls, and security headers.
• Monitor logs, Watch for indicators of compromise (IOCs) related to this threat.
• Update security policies, Ensure incident response plans cover this type of threat.
• Run a security scan, Use automated tools to verify your exposure.

Need Expert Help?

If your organization needs help assessing or remediating this issue, hire a verified cybersecurity specialist through NEL Professionals.

Get up to 100 scans or unlimited lifetime access starting at $15.

Comments (0)

No comments yet. Be the first to comment!