CVE-2026-80147 Lantronix SLC8000 - Buffer Overflow

Lantronix SLC8000 < 9.7.0.2, EMG8500/EMG7500 < 9.7.0.1, and all versions of SLB882/SLCx-03/SLCx-02 contain a stack-based buffer overflow caused by an undocumented mfc eeprom write command copying unbounded input into a stack buffer, letting authenticated attackers execute arbitrary code via terminal or CLI interface.

CVSS base score 9.9 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.46% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
22 September 2026
Updated
15 October 2026
Weakness
CWE-121

Vendor fix

Update to firmware version 9.7.0.2 or later for SLC8000, 9.7.0.1 or later for EMG8500/EMG7500, or latest available firmware for other affected devices.

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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