CVE-2026-80143: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in LANTRONIX SLC8000
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 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.
AI Analysis
Technical Summary
The vulnerability CVE-2026-80143 in LANTRONIX SLC8000 and related devices is due to improper neutralization of special elements in an OS command context, specifically an OS command injection flaw. The flaw exists in an undocumented mfc eeprom read command that accepts user input without sanitization and passes it directly to a system() call. Authenticated users to the terminal or CLI interface can exploit this to execute arbitrary shell commands with root privileges. Affected devices include all firmware versions of SLB882, SLCx-03, and SLCx-02, as well as SLC8000 firmware versions prior to 9.7.0.2 and EMG8500/EMG7500 firmware versions prior to 9.7.0.1. This vulnerability can lead to full compromise of the device and potentially impact downstream serial-attached devices.
Potential Impact
Successful exploitation allows authenticated attackers to execute arbitrary commands as root, resulting in complete loss of confidentiality, integrity, and availability of the affected device. This can also affect downstream serial-attached devices connected to the compromised unit.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the terminal or CLI interface to trusted users only and monitor for unauthorized access attempts.
CVE-2026-80143: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in LANTRONIX SLC8000
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 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.
CVSS v4.0
Score 9.4critical
Affected software
LANTRONIX
SLC8000
LANTRONIX
EMG8500
LANTRONIX
EMG7500
LANTRONIX
SLB882
LANTRONIX
SLCx-03
LANTRONIX
SLCx-02
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-80143 in LANTRONIX SLC8000 and related devices is due to improper neutralization of special elements in an OS command context, specifically an OS command injection flaw. The flaw exists in an undocumented mfc eeprom read command that accepts user input without sanitization and passes it directly to a system() call. Authenticated users to the terminal or CLI interface can exploit this to execute arbitrary shell commands with root privileges. Affected devices include all firmware versions of SLB882, SLCx-03, and SLCx-02, as well as SLC8000 firmware versions prior to 9.7.0.2 and EMG8500/EMG7500 firmware versions prior to 9.7.0.1. This vulnerability can lead to full compromise of the device and potentially impact downstream serial-attached devices.
Potential Impact
Successful exploitation allows authenticated attackers to execute arbitrary commands as root, resulting in complete loss of confidentiality, integrity, and availability of the affected device. This can also affect downstream serial-attached devices connected to the compromised unit.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the terminal or CLI interface to trusted users only and monitor for unauthorized access attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-25T20:43:54.261Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab29fbaf7a7c541065ca862
Added to database: 09/22/2026, 15:33:14 UTC
Last enriched: 09/22/2026, 15:48:44 UTC
Last updated: 09/23/2026, 01:58:06 UTC
Views: 11
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