---
id: CVE-2026-80143
title: >-
  Lantronix SLC8000/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 to
  execute ar…
summary: >-
  Lantronix SLC8000/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 to
  execute ar…
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: LANTRONIX
product: SLC8000
affected:
  - SLC8000 < 9.7.0.2
  - EMG8500 < 9.7.0.1
  - EMG7500 < 9.7.0.1
  - SLB882
  - SLCx-03
  - SLCx-02
  - SLC9000 < 9.7.0.2
published: '2026-09-22'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T20:17:30.390'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80143'
references:
  - url: 'https://revrb.net/2026/09/21/revrb-lantern.html'
    label: disclosure@vulncheck.com
  - url: 'https://ts.lantronix.com/ftp/SLC9000/9.7.0.2R1/'
    label: disclosure@vulncheck.com
  - url: 'https://ts.lantronix.com/ftp/emg/EMG_7500/9.7.0.1R2/'
    label: disclosure@vulncheck.com
  - url: 'https://ts.lantronix.com/ftp/emg/EMG_8500/9.7.0.1R2/'
    label: disclosure@vulncheck.com
  - url: 'https://ts.lantronix.com/ftp/slc8000/9.7.0.2R1/'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-cli-command-injection-via-mfc-eeprom-read
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.02988
epssPercentile: 0.86772
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-22T17:22:12.191184Z'
ingestedAt: '2026-09-22T16:06:00.498Z'
---

## Overview

Lantronix SLC8000/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 to execute arbitrary shell commands as root by exploiting an undocumented mfc eeprom read command that passes unsanitized user input to a system() call. Attackers can authenticate as any user 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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.