# CVE-2026-9128: Studio 5000 Logix Designer® – Multiple Vulnerabilities

> Attackers can execute arbitrary code by exploiting unquoted search paths in external tool configurations, requiring user interaction to run the application.

- **Severity:** High 7.3 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 Jul 2026
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-9425-qrrg-4g6q

## What is CVE-2026-9128?

CVE-2026-9128 is a high-severity command injection vulnerability in Rockwell Automation Studio 5000 Logix Designer, published on 14 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

A code execution security issue exists within Studio 5000 Logix Designer® due to an unquoted search path in the External Tools configuration. The executable paths specified in the external tools configuration file are not properly quoted, and because these paths contain spaces, the operating system may resolve them to unintended executables placed earlier in the search order. If exploited, an attacker could plant a malicious executable in a location within the search path, resulting in arbitrary code execution with the same permissions of the user running the application.

Weakness: CWE-428 (Unquoted Search Path or Element)

## Which versions are affected by CVE-2026-9128?

It affects 1 product.


Products: Rockwellautomation Studio 5000 Logix Designer.

## How do I fix CVE-2026-9128?

No fix has been published for CVE-2026-9128 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-9128 being exploited?

There is no known exploitation of CVE-2026-9128 in the wild and no public exploit code.

## Other vulnerabilities in Rockwell Automation Studio 5000 Logix Designer

- [CVE-2026-9127](https://insights.sbomify.com/CVE-2026-9127/): Studio 5000 Logix Designer® – Multiple Vulnerabilities (high 7.3)
- [CVE-2026-9108](https://insights.sbomify.com/CVE-2026-9108/): Studio 5000 Logix Designer® – Multiple Vulnerabilities (medium 5.4)
- [CVE-2020-12025](https://insights.sbomify.com/CVE-2020-12025/): XML external entity in Rockwell Automation Logix Designer Studio 5000 Versions 32.00, 32.01, and 32.02 (low 3.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-9128 and fix it if it is affected.

What it is: CVE-2026-9128 is a high-severity command injection vulnerability in Rockwell Automation Studio 5000 Logix Designer, published on 14 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-9128 in the wild and no public exploit code.

Affected product: Rockwell Automation Studio 5000 Logix Designer. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-9128/ (Markdown: https://insights.sbomify.com/CVE-2026-9128/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-9128
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9128
- OSV: https://osv.dev/vulnerability/CVE-2026-9128

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-9128/
Summaries are generated and may contain mistakes; the official description above is the record.