Security advisory

{
  "id": "4f581db1fcf6e66f5d09b3cb01d18c321139a2ae5cae5539fb7aa46e3d275e9b",
  "url": "https://osv.dev/vulnerability/CVE-2021-34267",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-34267",
    "summary": "An in the USBH_MSC_InterfaceInit() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below causes a denial of service (DOS) when the system tries to communicate with the connected endpoint.",
    "evidence": "osv:CVE-2021-34267",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-34267",
      "aliases": [
        "CVE-2021-34267"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/stmicroelectronics/stm32cubeh7",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "beced99ac090fece04d1e0eb6648b8075e156c6c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:st:stm32cube_middleware:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.8.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.8.0",
            "v1.7.0",
            "v1.6.0",
            "v1.5.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34267.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:49.026051607Z",
      "provider": "osv",
      "references": [
        "https://github.com/STMicroelectronics/STM32CubeH7/issues/80"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-34267",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384663,
  "published_at": "2021-07-22T20:15:08.287+00:00"
}