Command Injection Vulnerability in Lantronix SLC8000 and Related Devices
CVE-2026-80143

9.4CRITICAL

Key Information:

Vendor

Lantronix

Status
Slc8000
Emg8500
Emg7500
Slb882
Vendor
CVE Published:
22 September 2026

What is CVE-2026-80143?

The command injection vulnerability in certain Lantronix devices allows authenticated attackers to execute arbitrary shell commands with root privileges. By exploiting an undocumented 'mfc eeprom read' command that processes unsanitized user input via a system() call, attackers can gain unauthorized control. This could lead to significant breaches of confidentiality, integrity, and availability, not just on the targeted device but also on connected devices, thereby posing a serious security risk.

Affected Version(s)

EMG7500 0 < 9.7.0.1

EMG8500 0 < 9.7.0.1

SLB882 *

References

https://revrb.net/2026/09/21/revrb-lantern.html
technical-description
https://ts.lantronix.com/ftp/slc8000/9.7.0.2R1/
patch
https://ts.lantronix.com/ftp/emg/EMG_8500/9.7.0.1R2/
patch

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

RE/VRb
.