CVE-2026-80151
Received Received - Intake

Command Injection in Lantronix SLC8000 EMG8500 EMG7500 SLB882

Publication date: 2026-09-22

Last updated on: 2026-09-22

Assigner: VulnCheck

Description
Lantronix SLC8000 before firmware v9.7.0.3, EMG8500/EMG7500 before firmware v9.7.0.1, and all firmware versions of SLB882/SLCx-03/SLCx-02 contain a command injection vulnerability that allows authenticated attackers with the services permission to execute arbitrary shell commands as root by exploiting the set nfs download command that passes unsanitized user input to a system() call. Attackers with the services permission can authenticate to the terminal or CLI interface and inject malicious commands through the unsanitized parameter to achieve complete loss of confidentiality, integrity, and availability on the affected device and potentially impact downstream serial-attached devices.

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Meta Information

Published
2026-09-22
Last Modified
2026-09-22
Generated
2026-09-22
AI Q&A
2026-09-22
EPSS Evaluated
N/A
NVD
CVE-2026-80151
EUVD
EUVD-2026-84517

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
lantronix emg7500 to 9.7.0.1 (exc)
lantronix slc8000 to 9.7.0.3 (exc)
lantronix emg8500 to 9.7.0.1 (exc)
lantronix slb882 *
lantronix slcx-03 *
lantronix slcx-02 *

Helpful Resources

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.

Attack-Flow Graph

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Executive Summary

This is a command injection vulnerability in Lantronix devices where authenticated attackers with services permission can execute arbitrary shell commands as root. It occurs due to unsanitized user input in the 'set nfs download' command passed to a system() call.

Detection Guidance

To detect this vulnerability, check the firmware versions of affected Lantronix devices. For SLC8000, verify if firmware is below v9.7.0.3. For EMG8500/EMG7500, check if firmware is below v9.7.0.1. All versions of SLB882, SLCx-03, and SLCx-02 are vulnerable. Use CLI commands like 'show version' or 'get system' to check firmware versions.

Impact Analysis

Attackers can gain root access, leading to complete loss of confidentiality, integrity, and availability on the device. It may also impact downstream serial-attached devices connected to the affected system.

Compliance Impact

This vulnerability can lead to complete loss of confidentiality, integrity, and availability on affected devices, which may result in unauthorized access to sensitive data. For GDPR, this could mean breaches of personal data requiring notification under Article 33. For HIPAA, it could lead to unauthorized disclosure of protected health information, violating the Security Rule.

Mitigation Strategies

Immediately update affected devices to the latest firmware versions: SLC8000 to v9.7.0.3 or later, EMG8500/EMG7500 to v9.7.0.1 or later. Disable the 'services' permission for untrusted users and restrict CLI access. Monitor network traffic for suspicious commands involving 'set nfs download'.

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