Rockwell Automation Redundancy Module Configuration Tool

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 fixRockwell Automation has released Redundancy Module Configuration Tool version 10.01.00 for users to install. MitigationCustomers 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/answe
rs/answer_view/a_id/1085012/loc/en_US#__highlight
MitigationFor more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html.
https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html

Relevant CWE: CWE-276 Incorrect Default Permissions

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
7.3
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H


4.0
7
HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N







CVE-2026-9634

A security issue exists within the Redundancy Module Configuration Tool. The RMConfigTool.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: >=9.00.00|<=10.00.00
Product Status:known_affected


Remediations
Vendor fixRockwell Automation has released Redundancy Module Configuration Tool version 10.01.00 for users to install. MitigationCustomers 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/answe
rs/answer_view/a_id/1085012/loc/en_US#__highlight
MitigationFor more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html.
https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html

Relevant CWE: CWE-276 Incorrect Default Permissions

Metrics




CVSS Version
Base Score
Base Severity
Vector String




3.1
7.3
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H


4.0
7
HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N








Acknowledgments

Rockwell Automation reported these vulnerabilities to CISA


Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).

Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices
on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. These vulnerabilities are not exploitable remotely.

Revision History

Initial Release Date: 2026-09-01




Date
Revision
Summary




2026-09-01
1
Initial Republication of Rockwell Automation Security Advisory




Legal Notice and Terms of Use

https://www.cisa.gov/news-events/ics-advisories/icsa-26-244-02

2026-09-01 12:00 UTC

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