CVE-2026-3821

Full vulnerability record from the local CVENow database.

Description

Supermicro (SMC) SMASH services contain an Arbitrary code execution issue in X14DBG-DAP and X14DBI. An authorized attacker can exploit SMASH’s input capability to compromise data integrity or launch a Denial-of-Service (DoS) attack against the BMC.

Severity

HIGH

CVSS score

8.8 (v3.1)

Vulnerability status

Awaiting Analysis

Source identifier

def9a96e-e099-41a9-bfac-30fd4f82c411

Published

2026-07-22 07:16:35.413000

Last modified

2026-10-24 17:10:00.220000

View original CVE JSON

{
  "id": "CVE-2026-3821",
  "sourceIdentifier": "def9a96e-e099-41a9-bfac-30fd4f82c411",
  "published": "2026-07-22T07:16:35.413",
  "lastModified": "2026-10-24T17:10:00.220",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Supermicro (SMC) SMASH services contain an Arbitrary code execution issue in X14DBG-DAP and X14DBI.\nAn authorized attacker can exploit SMASH’s input capability to compromise data integrity or launch a Denial-of-Service (DoS) attack against the BMC."
    },
    {
      "lang": "es",
      "value": "Los servicios SMASH de Supermicro (SMC) contienen un problema de ejecución de código arbitrario en X14DBG-DAP y X14DBI.\nUn atacante autorizado puede explotar la capacidad de entrada de SMASH para comprometer la integridad de los datos o lanzar un ataque de denegación de servicio (DoS) contra el BMC."
    }
  ],
  "affected": [
    {
      "source": "def9a96e-e099-41a9-bfac-30fd4f82c411",
      "affectedData": [
        {
          "vendor": "SMCI",
          "product": "X14DBG-DAP,X14DBI",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "01.00.16.00",
              "status": "affected"
            },
            {
              "version": "1.03.02.06",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "def9a96e-e099-41a9-bfac-30fd4f82c411",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-22T12:55:41.124871Z",
          "id": "CVE-2026-3821",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "def9a96e-e099-41a9-bfac-30fd4f82c411",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.supermicro.com/en/support/security_BMC_IPMI_Jul_2026",
      "source": "def9a96e-e099-41a9-bfac-30fd4f82c411"
    }
  ]
}