CVE-2026-80156 Lantronix SLC8000 - Path Traversal & Remote Code Execution

Lantronix SLC8000 < 9.7.0.5, EMG8500/EMG7500 < 9.7.0.1, and all versions of SLB882/SLCx-03/SLCx-02 contain a path traversal vulnerability in the web management portal upload endpoint, letting authenticated attackers write arbitrary data outside intended directories, leading to remote code execution.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.70% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
Remote Code Execution, File System Write
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published
22 September 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to firmware version 9.7.0.5 or later for SLC8000, 9.7.0.1 or later for EMG8500/EMG7500, or latest available firmware for other affected models.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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