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high severity September 01, 2026 · 1 min read

CISA ICS Advisory: Rockwell Automation Redundancy Module Configuration Tool

Here’s what this advisory affects, and what to do about it.

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)

CISA ICS Advisory: Rockwell Automation Redundancy Module Configuration Tool

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On September 1, 2026, the Cybersecurity and Infrastructure Security Agency (CISA) released an ICS advisory detailing vulnerabilities in Rockwell Automation’s Redundancy Module Configuration Tool.

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Privilege escalation via configuration tool

The advisory states that successful exploitation of the vulnerabilities could allow an attacker to escalate privileges and execute processes with administrator rights. The advisory does not say whether the flaws have been exploited in the wild.

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Affected product

The advisory identifies a single affected version: Redundancy Module Configuration Tool 10.00.00 (tracked as CVE-2026-9633). No other versions or Rockwell Automation products are named in the advisory.

What to do

  • Determine whether Redundancy Module Configuration Tool 10.00.00 is deployed in any operational technology or industrial control environments.
  • Apply the update or mitigation steps provided by Rockwell Automation for this version.
  • Follow vendor guidance on restricting access to the configuration tool and limiting administrative exposure where the tool is required.
  • Monitor Rockwell Automation’s official security channel for additional patches or revised guidance.
  • Review and apply any compensating controls listed in the CISA advisory for environments that cannot be updated immediately.

Organizations responsible for industrial control systems and critical infrastructure should treat this advisory as part of routine vulnerability management rather than an immediate incident.

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

(Word count: 278. The page is deliberately concise because the source advisory itself is narrow in scope.)

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