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

High severity · published Jul 14, 2026

CVE-2026-9128

Studio 5000 Logix Designer® – Multiple Vulnerabilities

7.5

CVSS

0.2%

EPSS

On KEV

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.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Attack vector

Local

Complexity

High

Privileges

Low

User interaction

Required

Confidentiality

High

Integrity

High

Availability

High

Scope

Changed

Exploitation

Is it being used?

Exploit prediction (EPSS)0.2% · higher than 6% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Studio 5000 Logix Designer · Rockwell Automation

V35.00, 34.00-34.02, 33.00-33.02, 32.00-32.04 and older · source: vendor, NVD

In the news

VulnerabilityHigh

Rockwell Automation Studio 5000 Logix Designer

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|<=V34.03 (CVE-2026-9108) Studio 5000 Logix Designer >=V33.00|<=V33.03 (CVE-2026-9108) Studio 5000 Logix Designer >=V32.00|<=V32.04 (CVE-2026-9108, CVE-2026-9127, CVE-2026-9128) Studio 5000 Logix Designer V34.00 (CVE-2026-9127) Studio 5000 Logix Designer V34.01 (CVE-2026-9127) Studio 5000 Logix Designer V33.00 (CVE-2026-9127) Studio 5000 Logix Designer V33.02 (CVE-2026-9127) Studio 5000 Logix Designer >=V34.00|<=V34.02 (CVE-2026-9128) Studio 5000 Logix Designer >=V33.00|<=V33.02 (CVE-2026-9128) CVSS Vendor Equipment Vulnerabilities v3 7.5 Rockwell Automation Rockwell Automation Studio 5000 Logix Designer Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), Incorrect Authorization, Unquoted Search Path or Element Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States ...

CVE-2026-9108 CVE-2026-9127 CVE-2026-9128

Jul 21, 2026·CISA Advisories

Affected product

Studio 5000 Logix Designer

Rockwell Automation

All Studio 5000 Logix Designer CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-9128

CVE.org

https://www.cve.org/CVERecord?id=CVE-2026-9128

Vendor Advisory

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