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

Vulnerability from cvelistv5 – Published: 2026-09-22 15:19 – Updated: 2026-09-25 23:34
VLAI
Title
Lantronix Autonomous Out-of-Band Devices Stack-Based Buffer Overflow via mfc eeprom read
Summary
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 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.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 23:33 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
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)
guessed Create a notification for this product.
LANTRONIX SLC9000 Affected: 0 , < 9.7.0.2 (custom)
guessed Create a notification for this product.
Date Public
2026-09-18 00:00
Credits
Show details on NVD website

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                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-121",
                  "description": "Stack-based Buffer Overflow",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-24T19:03:26.826Z",
            "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
            "shortName": "VulnCheck"
          },
          "references": [
            {
              "name": "Researcher Disclosure",
              "tags": [
                "technical-description"
              ],
              "url": "https://revrb.net/2026/09/21/revrb-lantern.html"
            },
            {
              "name": "SLC8000 Firmware",
              "tags": [
                "patch"
              ],
              "url": "https://ts.lantronix.com/ftp/slc8000/9.7.0.2R1/"
            },
            {
              "name": "EMG8500 Firmware",
              "tags": [
                "patch"
              ],
              "url": "https://ts.lantronix.com/ftp/emg/EMG_8500/9.7.0.1R2/"
            },
            {
              "name": "EMG7500 Firmware",
              "tags": [
                "patch"
              ],
              "url": "https://ts.lantronix.com/ftp/emg/EMG_7500/9.7.0.1R2/"
            },
            {
              "name": "SLC9000 Firmware",
              "tags": [
                "patch"
              ],
              "url": "https://ts.lantronix.com/ftp/SLC9000/9.7.0.2R1/"
            },
            {
              "tags": [
                "third-party-advisory"
              ],
              "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"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "assignerShortName": "VulnCheck",
        "cveId": "CVE-2026-80146",
        "datePublished": "2026-09-22T15:19:38.818Z",
        "dateReserved": "2026-08-25T20:43:54.261Z",
        "dateUpdated": "2026-09-24T19:03:26.826Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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