Supermicro BMC contains Unprotected IPMI Commands Accepted on Active RMCP+ Sessions vulnerability

{
  "id": "a6b6bc62ddcca61536ad7f3e37dab2a6bde691fc3cf7bf5cb6ee217f67baef0b",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-18450",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Supermicro BMC contains Unprotected IPMI Commands Accepted on Active RMCP+ Sessions vulnerability",
    "summary": "The BMC does not correctly enforce integrity and encryption requirements for IPMI commands. An attacker may be able to craft packets that execute arbitrary commands on an active session.",
    "evidence": "cve:CVE-2026-18450",
    "products": [
      {
        "name": {
          "value": "X12SPI",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-18450",
      "aliases": [
        "CVE-2026-18450"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 9.8,
            "attackVector": "NETWORK",
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "integrityImpact": "HIGH",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "confidentialityImpact": "HIGH"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "SMCI",
          "product": "X12SPI",
          "versions": [
            {
              "status": "affected",
              "version": "01.07.20",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "BMC"
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-27T07:46:02.598Z",
      "provider": "cve",
      "references": [
        "https://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "def9a96e-e099-41a9-bfac-30fd4f82c411",
          "shortName": "Supermicro",
          "dateUpdated": "2026-10-27T07:46:02.598Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-18450",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 391531,
  "published_at": "2026-10-27T07:46:02.598+00:00"
}