{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-21427",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-08T15:52:49.936381Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-08T15:52:56.950Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "USB DAC Amplifier APS-DA101JS",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "product": "USB DAC Amplifier APS-DA101JR",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "product": "USB DAC Amplifier APS-DA101JGL",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "product": "USB DAC Amplifier APS-DA101JGR",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "product": "Stellanova Lite APS-S201JS",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "product": "Stellanova Lite APS-S201JR",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "product": "Stellanova Lite APS-S201JGL",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "product": "Stellanova Lite APS-S201JGR",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "product": "Stellanova Limited APS-S202J-LM",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "product": "Stellanova APS-S301 series",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The installers for multiple products provided by PIONEER CORPORATION contain an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries. As a result,  arbitrary code may be executed with the privileges of the running installer."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV4_0": {
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-427",
              "description": "Uncontrolled Search Path Element",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-22T07:03:11.927Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "url": "https://jpn.pioneer/ja/support/software/stellanova/dac_driver/"
        },
        {
          "url": "https://jvn.jp/en/jp/JVN17956874/"
        }
      ],
      "tags": [
        "unsupported-when-assigned"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2026-21427",
    "datePublished": "2026-01-08T04:12:21.781Z",
    "dateReserved": "2025-12-25T00:23:40.578Z",
    "dateUpdated": "2026-01-22T07:03:11.927Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}