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Rockwell Automation Studio 5000 Logix Designer

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Overview

Rockwell Automation's Studio 5000 Logix Designer has several vulnerabilities that could allow local attackers to execute arbitrary files and alter configurations. Versions affected include Studio 5000 Logix Designer V36.00 and various iterations of V35.00, V35.01, and earlier versions down to V32.00. The vulnerabilities, identified as CVE-2026-9108, CVE-2026-9127, and CVE-2026-9128, have been assigned high severity scores, indicating they could pose significant risks to users. Rockwell Automation has released updates to address these issues, and users unable to upgrade should follow the company's security best practices to mitigate risks. The potential for exploitation of these vulnerabilities highlights the need for organizations to maintain robust cybersecurity defenses.

Key Takeaways

  • Affected Systems: Studio 5000 Logix Designer V36.00, V35.00, V35.01, and versions down to V32.00 from Rockwell Automation.
  • Action Required: Users should upgrade to Studio 5000 Logix Designer versions V36.
  • Timeline: Disclosed on 2026-07-21

Original Article Summary

View CSAF Summary Successful exploitation of these vulnerabilities could allow for a local attacker to execute arbitrary files, alter configurations, or execute arbitrary code. The following versions of Rockwell Automation Studio 5000 Logix Designer are affected: Studio 5000 Logix Designer V36.00 (CVE-2026-9108) Studio 5000 Logix Designer V35.00 (CVE-2026-9108, CVE-2026-9127, CVE-2026-9128) Studio 5000 Logix Designer V35.01 (CVE-2026-9108) Studio 5000 Logix Designer >=V34.00|=V33.00|=V32.00|=V34.00|=V33.00|=V34.00|=V33.00|=V32.00|=V32.00|=V32.00|=V34.00|=V33.00|<=V33.02 Product Status: known_affected Remediations Vendor fix Studio 5000 Logix Designer: V36.00, 35.01, 34.03, 33.03, 32.05 (CVE-2026-9128) 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 For 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-428 Unquoted Search Path or Element Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H 4.0 7.3 HIGH CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H 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 have a high attack complexity. Revision History Initial Release Date: 2026-07-21 Date Revision Summary 2026-07-21 1 Initial Republication of Rockwell Automation Security Advisory Legal Notice and Terms of Use

Impact

Studio 5000 Logix Designer V36.00, V35.00, V35.01, and versions down to V32.00 from Rockwell Automation.

Exploitation Status

No active exploitation has been reported at this time. However, organizations should still apply patches promptly as proof-of-concept code may exist.

Timeline

Disclosed on 2026-07-21

Remediation

Users should upgrade to Studio 5000 Logix Designer versions V36.00, 35.01, 34.03, 33.03, or 32.05. For those unable to upgrade, Rockwell Automation recommends adhering to their security best practices, which can be found on their support website.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Phishing, CVE, Vulnerability.

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