Rockwell Automation Redundancy Module Configuration Tool 10.00.00 DLL Search RM3ConfigTool.exe permission

Summaryinfo

A vulnerability marked as very critical has been reported in Rockwell Automation Redundancy Module Configuration Tool 10.00.00. The affected element is an unknown function of the file RM3ConfigTool.exe of the component DLL Search. The manipulation leads to permission. This vulnerability is uniquely identified as CVE-2026-9633. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Rockwell Automation Redundancy Module Configuration Tool 10.00.00. This issue affects an unknown code of the file RM3ConfigTool.exe of the component DLL Search. The manipulation with an unknown input leads to a permission vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at rockwellautomation.com. The identification of this vulnerability is CVE-2026-9633 since 05/26/2026. The exploitation is known to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/01/2026). The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Automation Software

Vendor

• Rockwell Automation

Name

• Redundancy Module Configuration Tool

Version

• 10.00.00

License

• commercial

CPE 2.3info

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CPE 2.2info

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