CVE-2026-9128

Local code execution via unquoted tool paths

Published Jul 14, 2026 · Updated Jul 14, 2026

Unquoted search paths in affected Studio 5000 Logix Designer releases allow local users to execute code through External Tools. The External Tools configuration file leaves executable paths containing spaces unquoted, so Windows can select an attacker-planted executable earlier in the path. Exploitation requires local low-privileged access and active use of the configured tool, and the planted code runs with the application's user permissions.

CVSS severity7.3
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unquoted search paths in affected Studio 5000 Logix Designer releases allow local users to execute code through External Tools. The External Tools configuration file leaves executable paths containing spaces unquoted, so Windows can select an attacker-planted executable earlier in the path. Exploitation requires local low-privileged access and active use of the configured tool, and the planted code runs with the application's user permissions.

The record

CVE
CVE-2026-9128
Published
Jul 14, 2026
Updated
Jul 14, 2026
Vendor
Rockwell Automation
Product
Studio 5000 Logix Designer
Classifications
CWE-428, T1574.009
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V35.00, 34.00-34.02, 33.00-33.02, 32.00-32.04 and older

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Rockwell Automation · Studio 5000 Logix Designerversion=V35.00, 34.00-34.02, 33.00-33.02, 32.00-32.04 and older

Published CVSS scores

7.3Rockwell AutomationCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
7.5NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-428Unquoted Search Path or Element
T1574.009Hijack Execution Flow: Path Interception by Unquoted Path

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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