Lantronix EMG7500/EMG8500/SLB882/SLC8000/SLCx-02/SLCx-03 NFS Download system command injection

Summaryinfo

A vulnerability, which was classified as very critical, has been found in Lantronix EMG7500, EMG8500, SLB882, SLC8000, SLCx-02 and SLCx-03. This affects the function system of the component NFS Download. This manipulation causes command injection. This vulnerability appears as CVE-2026-80151. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as very critical was found in Lantronix EMG7500, EMG8500, SLB882, SLC8000, SLCx-02 and SLCx-03. Affected by this vulnerability is the function system of the component NFS Download. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at revrb.net. This vulnerability is known as CVE-2026-80151 since 08/25/2026. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are necessary for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/22/2026). MITRE ATT&CK project uses the attack technique T1202 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Lantronix

Name

• EMG7500
• EMG8500
• SLB882
• SLC8000
• SLCx-02
• SLCx-03

License

• commercial

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CPE 2.2info

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