CVE-2026-80144
Lantronix Autonomous Out-of-Band Devices CLI Command Injection via mfc eeprom write
- State
- Published
- Severity
- 9.4 Critical
- Published
- Sep 22, 2026
- Updated
- Sep 24, 2026
- Reserved
- Aug 25, 2026
Description
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 write 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.4 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | VulnCheck |
| 3.1 | 9.9 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
| Product | Versions |
|---|---|
SLC8000LANTRONIX |
|
EMG8500LANTRONIX |
|
EMG7500LANTRONIX |
|
SLB882LANTRONIX |
|
SLCx-03LANTRONIX |
|
SLCx-02LANTRONIX |
|
SLC9000LANTRONIX |
|
References
- Researcher Disclosuretechnical-description
- SLC8000 Firmwarepatch
- EMG8500 Firmwarepatch
- EMG7500 Firmwarepatch
- SLC9000 Firmwarepatch
- https://www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-cli-command-injection-via-mfc-eeprom-writethird-party-advisory
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