CVE-2026-80147Lantronix Autonomous Out-of-Band Devices Stack-Based Buffer Overflow via mfc eeprom write
Updated under an hour ago ()
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It affects LANTRONIX SLC8000 and 6 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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 stack-based buffer overflow vulnerability that allows authenticated attackers to potentially execute arbitrary code by exploiting an undocumented mfc eeprom write command that copies unbounded user input into a bounded stack buffer before passing it to a system() call. Attackers can authenticate as any user to the terminal or CLI interface and supply an oversized input to trigger the overflow, potentially achieving complete loss of confidentiality, integrity, and availability on the affected device and impacting downstream serial-attached devices.
- CVSS
- 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-121
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
LANTRONIX SLC8000 lantronix:slc8000 (from the name) | before 9.7.0.2 | CNA record |
LANTRONIX EMG8500 lantronix:emg8500 (from the name) | before 9.7.0.1 | CNA record |
LANTRONIX EMG7500 lantronix:emg7500 (from the name) | before 9.7.0.1 | CNA record |
LANTRONIX SLB882 lantronix:slb882 (from the name) | all versions | CNA record |
LANTRONIX SLCx-03 lantronix:slcx_03 (from the name) | all versions | CNA record |
LANTRONIX SLCx-02 lantronix:slcx_02 (from the name) | all versions | CNA record |
LANTRONIX SLC9000 lantronix:slc9000 (from the name) | before 9.7.0.2 | CNA record |
References
- https://revrb.net/2026/09/21/revrb-lantern.htmltechnical-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
- https://ts.lantronix.com/ftp/emg/EMG_7500/9.7.0.1R2/patch
- https://ts.lantronix.com/ftp/SLC9000/9.7.0.2R1/patch
- https://www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-stack-based-buffer-overflow-via-mfc-eeprom-writethird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.