CVE-2026-111853
Received Received - Intake

OS Command Injection in Tektronix 3 Series MDO Firmware

Publication date: 2026-10-17

Last updated on: 2026-10-17

Assigner: MITRE

Description
An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1. An OS command injection vulnerability exists in the FILESystem:MOUNT:DRIve SCPI command handler. Insufficient neutralization of user-supplied input allows remote attackers to execute arbitrary operating system commands with elevated privileges.

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Meta Information

Published
2026-10-17
Last Modified
2026-10-17
Generated
2026-10-17
AI Q&A
2026-10-17
EPSS Evaluated
N/A
NVD
CVE-2026-111853
EUVD
EUVD-2026-103206

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Tektronix 3 Series MDO 0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

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Executive Summary

This vulnerability is an OS command injection flaw in Tektronix 3 Series MDO devices before firmware version 1.21.1. It exists in the FILESystem:MOUNT:DRIve SCPI command handler where insufficient neutralization of user input allows remote attackers to execute arbitrary operating system commands with elevated privileges.

Detection Guidance

Check the firmware version of your Tektronix 3 Series MDO device. If it is below v1.21.1, the device is vulnerable. Use the SCPI command 'SYSTem:INFormation?' to verify the firmware version.

Impact Analysis

An attacker could exploit this to run unauthorized commands on your device, potentially gaining control over it. This could lead to data theft, device malfunction, or further network compromise if the device is connected to other systems.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR and HIPAA requirements for data protection and access control. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Update the firmware to version v1.21.1 or later immediately. Disable remote access to the SCPI command interface if not required. Monitor network traffic for suspicious commands targeting the FILESystem:MOUNT:DRIve handler.

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