# CVE-2026-9127: Rockwell Automation Studio 5000 Logix Designer incorrect authorization in configuration file

Source: https://junglewise.ai/threats/cve-2026-9127-rockwell-automation-studio-5000-logix-designer-incorrect  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-14. Updated: 2026-07-14  
License: CC BY 4.0 with a link back

CVE-2026-9127 · Severity: info · CVSS 7.3 · Published 2026-07-14

Studio 5000 Logix Designer, a software suite used to program industrial automation controllers, contains a security flaw in how it manages its configuration files. An authorized user on the system can modify the paths used to launch external tools, redirecting them to run malicious software instead. If another user then attempts to use those tools, the attacker's malicious code will execute, potentially leading to a full system compromise or disruption of industrial operations.

Technologies: [Rockwell Automation Studio 5000 Logix Designer](https://junglewise.ai/threats/technologies/studio-5000-logix-designer). Vendors: [Rockwell Automation](https://junglewise.ai/threats/vendors/rockwell-automation).

## Quick answers

**Is CVE-2026-9127 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-9127 being exploited in the wild.

**How severe is CVE-2026-9127?** Informational severity, with a CVSS score of 7.3, published 14 July 2026.

**Which products and versions are affected?** Rockwell Automation Studio 5000 Logix Designer V35.00, 34.00, 34.01, 33.00, 33.02, 32.00-32.04 and older.

**Is there a fix for CVE-2026-9127?** A patch was published on 2026-07-14. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-9127 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-9127?** Check whether you run Rockwell Automation Studio 5000 Logix Designer at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A vulnerability classified as Incorrect Authorization (CWE-863) exists in Rockwell Automation Studio 5000 Logix Designer. The application fails to properly restrict access to a configuration file that defines the execution paths for external tools. An authenticated local attacker can modify these paths to point to a malicious executable. Arbitrary code execution occurs when a victim subsequently interacts with the 'external tools' functionality within the application. The attack requires local access and user interaction, but results in high impact to confidentiality, integrity, and availability. Patches are available in versions V36.00, 35.01, 34.02, 33.02, and 32.05.

## Affected products

- Rockwell Automation Studio 5000 Logix Designer V35.00, 34.00, 34.01, 33.00, 33.02, 32.00-32.04 and older

## Timeline

- 2026-07-14: disclosed
- 2026-07-14: advisory
- 2026-07-14: patched

## References

- [https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1783.html](https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1783.html)

## Related threats

- [Rockwell Automation Studio 5000 Logix Designer unquoted search path](https://junglewise.ai/threats/cve-2026-9128-rockwell-automation-studio-5000-logix-designer-unquoted-search)
- [Rockwell Automation Studio 5000 Logix Designer path traversal in ACD files](https://junglewise.ai/threats/cve-2026-9108-rockwell-automation-studio-5000-logix-designer-path-traversal-in)
- [Rockwell Automation Logix Designer authentication bypass in Logix Controllers](https://junglewise.ai/threats/cve-2021-22681-rockwell-automation-logix-designer-authentication-bypass-in-logix)