CVE-2026-80147
9.9 CRITICALPublished 2026-09-22 · Updated 2026-09-24
AI risk analysis
- Summary
- The flaw is a stack-based buffer overflow vulnerability in Lantronix devices that allows authenticated attackers to execute arbitrary code, leading to potential loss of confidentiality, integrity, and availability.
- Exploitability
- Exploitation requires authentication and knowledge of the undocumented mfc eeprom write command, making it moderately difficult.
- Blast radius
- If exploited, the impact could be severe, affecting the device and potentially downstream serial-attached devices, leading to complete loss of system control.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to firmware v9.7.0.2 or later for SLC8000/SLC9000, v9.7.0.1 or later for EMG8500/EMG7500, and ensure all SLB882/SLCx-03/SLCx-02 devices are patched.
Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.
NVD description
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-121
All references
- https://revrb.net/2026/09/21/revrb-lantern.html
- https://ts.lantronix.com/ftp/SLC9000/9.7.0.2R1/
- https://ts.lantronix.com/ftp/emg/EMG_7500/9.7.0.1R2/
- https://ts.lantronix.com/ftp/emg/EMG_8500/9.7.0.1R2/
- https://ts.lantronix.com/ftp/slc8000/9.7.0.2R1/
- https://www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-stack-based-buffer-overflow-via-mfc-eeprom-write
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- CRITICALCVE-2026-80146
- CRITICALCVE-2026-90823
- CRITICALCVE-2026-91843
- CRITICALCVE-2026-100291
- CRITICALCVE-2026-61515
- CRITICALCVE-2026-76725
- CRITICALCVE-2026-80143
- CRITICALCVE-2026-80144
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