CVE-2026-80145
Received Received - Intake

Command Injection in Lantronix SLC8000 EMG8500 EMG7500 SLB882 Firmware

Publication date: 2026-09-22

Last updated on: 2026-09-22

Assigner: VulnCheck

Description
Lantronix SLC8000 before firmware v9.7.0.2, 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 cifs password 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-2026-80145
EUVD
EUVD-2026-84509

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
lantronix emg7500 to 9.7.0.1 (exc)
lantronix slc8000 to 9.7.0.2 (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

CVE-2026-80145 is a command injection vulnerability in Lantronix devices. It allows authenticated attackers with services permission to execute arbitrary shell commands as root by exploiting the set cifs password command. The issue occurs because user input is passed unsanitized to a system() call.

Detection Guidance

Check firmware versions of Lantronix devices. For SLC8000, versions before v9.7.0.2 are vulnerable. For EMG8500/EMG7500, versions before v9.7.0.1 are vulnerable. All versions of SLB882, SLCx-03, and SLCx-02 are vulnerable. Verify if the device allows 'services' permission users to execute the 'set cifs password' command.

Commands to check: 1) SSH into the device and run 'show version' to check firmware. 2) Attempt to use the 'set cifs password' command with unsanitized input to test for command injection.

Impact Analysis

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

Mitigation Strategies

Update firmware to v9.7.0.2 for SLC8000 or v9.7.0.1 for EMG8500/EMG7500. Disable or restrict 'services' permission accounts. Block external access to the CLI interface if possible. Monitor network traffic for suspicious activity involving the 'set cifs password' command.

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