{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:eclipse:threadx_usbx:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "6.4.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "cfdd55c48a2f44afa55cdb198fe65ddb0c8565ba"
            }
          ],
          "repo": "https://github.com/eclipse-threadx/usbx",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qfmp-wch9-rpv2"
  ],
  "database_specific": {
    "cna_assigner": "eclipse",
    "cwe_ids": [
      "CWE-121",
      "CWE-674"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55095.json"
  },
  "details": "The function _ux_host_class_storage_media_mount() is responsible for mounting partitions on a USB mass storage device. When it encounters an extended partition entry in the partition table, it recursively calls itself to mount the next logical partition.\n\nThis recursion occurs in _ux_host_class_storage_partition_read(), which parses up to four partition entries. If an extended partition is found (with type UX_HOST_CLASS_STORAGE_PARTITION_EXTENDED or EXTENDED_LBA_MAPPED), the code invokes:\n            _ux_host_class_storage_media_mount(storage, sector + _ux_utility_long_get(...));\n\n\nThere is no limit on the recursion depth or tracking of visited sectors. As a result, a malicious or malformed disk image can include cyclic or excessively deep chains of extended partitions, causing the function to recurse until stack overflow occurs.",
  "id": "CVE-2025-55095",
  "modified": "2026-07-15T01:49:20.358085467Z",
  "published": "2026-01-27T15:34:47.755Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55095.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/eclipse-threadx/usbx/security/advisories/GHSA-qfmp-wch9-rpv2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55095"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/eclipse-threadx/usbx"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}