CVE-2026-80152: Command Injection (CVSS 9.1)

Description

Lantronix SLC8000 before firmware v9.7.0.3, SLC9000 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 script schedule 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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CVSS v3.1 Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0166

Probability of exploitation

0.76%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-78 OS Command Injection

References

Other References

https://revrb.net/2026/09/21/revrb-lantern.html https://ts.lantronix.com/ftp/SLC9000/9.7.0.2R1/ https://ts.lantronix.com/ftp/emg/EMG_7500/9.7.0.1R2/ https://ts.lantronix.com/ftp/emg/EMG_8500/9.7.0.1R2/ https://ts.lantronix.com/ftp/slc8000/9.7.0.3R3/ https://www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-os-command-injection-via-set-script-schedule

Frequently Asked Questions

What is CVE-2026-80152? +

Lantronix SLC8000 before firmware v9.7.0.3, SLC9000 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 script schedule 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. It has a CVSS v3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-80152? +

CVE-2026-80152 has a CVSS v3.1 score of 9.1 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0166, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-80152? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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