Answer in brief
CVE-2026-80146 records a Critical severity (CVSS 9.4) vulnerability in Lantronix Autonomous Out-of-Band Devices Stack-Based Buffer Overflow via mfc eeprom read. The current sources do not mark it as known exploited. The current feed maps LANTRONIX/EMG7500 (generic), LANTRONIX/EMG8500 (generic), LANTRONIX/SLB882 (generic), LANTRONIX/SLC8000 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps LANTRONIX/EMG7500 (generic), LANTRONIX/EMG8500 (generic), LANTRONIX/SLB882 (generic), LANTRONIX/SLC8000 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| LANTRONIX/EMG7500generic | >=0 <9.7.0.1 | 9.7.0.1 |
| LANTRONIX/EMG8500generic | >=0 <9.7.0.1 | 9.7.0.1 |
| LANTRONIX/SLB882generic | * | Not reported |
| LANTRONIX/SLC8000generic | >=0 <9.7.0.2 | 9.7.0.2 |
| LANTRONIX/SLCx-02generic | * | Not reported |
| LANTRONIX/SLCx-03generic | * | Not reported |
Published upstream
Sep 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 22, 2026
Lantronix SLC8000 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 read 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.
Quoted source text, attributed separately from HOL analysis.