CVE-2026-80146 (GCVE-0-2026-80146)

Vulnerability from cvelistv5 – Published: 2026-09-22 15:19 – Updated: 2026-09-22 15:19
VLAI
Title
Lantronix Autonomous Out-of-Band Devices Stack-Based Buffer Overflow via mfc eeprom read
Summary
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.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version CPE status
LANTRONIX SLC8000 Affected: 0 , < 9.7.0.2 (custom)
guessed Create a notification for this product.
LANTRONIX EMG8500 Affected: 0 , < 9.7.0.1 (custom)
guessed Create a notification for this product.
LANTRONIX EMG7500 Affected: 0 , < 9.7.0.1 (custom)
guessed Create a notification for this product.
LANTRONIX SLB882 Affected: * (custom)
guessed Create a notification for this product.
LANTRONIX SLCx-03 Affected: * (custom)
guessed Create a notification for this product.
LANTRONIX SLCx-02 Affected: * (custom)
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Date Public
2026-09-18 00:00
Credits
RE/VRb
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "SLC8000",
          "vendor": "LANTRONIX",
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          "product": "EMG8500",
          "vendor": "LANTRONIX",
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          "product": "EMG7500",
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              "status": "affected",
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        }
      ],
      "metrics": [
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "NONE",
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            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
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      "providerMetadata": {
        "dateUpdated": "2026-09-22T15:19:38.818Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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      "references": [
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          "tags": [
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          "url": "https://revrb.net/2026/09/21/revrb-lantern.html"
        },
        {
          "name": "SLC8000 Firmware",
          "tags": [
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          ],
          "url": "https://ts.lantronix.com/ftp/slc8000/9.7.0.2R1/"
        },
        {
          "name": "EMG8500 Firmware",
          "tags": [
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          ],
          "url": "https://ts.lantronix.com/ftp/emg/EMG_8500/9.7.0.1R2/"
        },
        {
          "name": "EMG7500 Firmware",
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          ],
          "url": "https://ts.lantronix.com/ftp/emg/EMG_7500/9.7.0.1R2/"
        },
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          "url": "https://www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-stack-based-buffer-overflow-via-mfc-eeprom-read"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Lantronix Autonomous Out-of-Band Devices Stack-Based Buffer Overflow via mfc eeprom read",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
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    "cveId": "CVE-2026-80146",
    "datePublished": "2026-09-22T15:19:38.818Z",
    "dateReserved": "2026-08-25T20:43:54.261Z",
    "dateUpdated": "2026-09-22T15:19:38.818Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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        ],
        "id": "CVE-2026-80146",
        "lastModified": "2026-09-22T20:25:55.870",
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  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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