SYSTEM privilege escalation via writable-path DLL hijacking
Published Sep 1, 2026 · Updated Sep 1, 2026
DLL hijacking in Rockwell Automation FactoryTalk Linx RMCT 9.00.00 through 10.00.00 allows local users to gain SYSTEM privileges. RMConfigTool.exe searches PATH directories for a required DLL and loads a matching library from locations that default permissions can leave writable by standard users. Exploitation requires a local user to plant the DLL and an administrator to run the tool; the DLL then executes in the elevated process.
Summary
What happened
DLL hijacking in Rockwell Automation FactoryTalk Linx RMCT 9.00.00 through 10.00.00 allows local users to gain SYSTEM privileges. RMConfigTool.exe searches PATH directories for a required DLL and loads a matching library from locations that default permissions can leave writable by standard users. Exploitation requires a local user to plant the DLL and an administrator to run the tool; the DLL then executes in the elevated process.
The record
- CVE
- CVE-2026-9634
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Vendor
- Rockwell Automation
- Product
- FactoryTalk Linx Redundancy Module Configuration Tool
- Classifications
- CWE-276, T1574.001
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 1, 2026CVE publishedPublication date reported by the CVE source.
- Sep 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=10.00.00
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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