Vulnerability-Lookup

JVNDB-2026-000004

Vulnerability from jvndb - Published: 2026-01-08 13:47 - Updated:2026-01-08 13:47

Severity ?

7.8 (High) - cvssV3_0 - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

The installers for multiple PIONEER products may insecurely load Dynamic Link Libraries

Details

The installers for multiple products provided by PIONEER CORPORATION contain the following vulnerability.

Uncontrolled search path element (CWE-427) - CVE-2026-21427

Kazuma Matsumoto of GMO Cybersecurity by IERAE, Inc. reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN17956874/index.html
	JVN	https://jvn.jp/en/ta/JVNTA91240916/
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-21427
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

	Pioneer Corporation	Stelllanova APS-S301 Series
	Pioneer Corporation	Stelllanova Limited APS-S202J-LM
	Pioneer Corporation	Stellanova Lite APS-S201JGL
	Pioneer Corporation	Stellanova Lite APS-S201JGR
	Pioneer Corporation	Stellanova Lite APS-S201JR
	Pioneer Corporation	Stellanova Lite APS-S201JS
	Pioneer Corporation	USB DAC Amplifier APS-DA101JGL
	Pioneer Corporation	USB DAC Amplifier APS-DA101JGR
	Pioneer Corporation	USB DAC Amplifier APS-DA101JR
	Pioneer Corporation	USB DAC Amplifier APS-DA101JS

Show details on JVN DB website

JSON

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{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000004.html",
  "dc:date": "2026-01-08T13:47+09:00",
  "dcterms:issued": "2026-01-08T13:47+09:00",
  "dcterms:modified": "2026-01-08T13:47+09:00",
  "description": "The installers for multiple products provided by PIONEER CORPORATION contain the following vulnerability.\u003cul\u003e\u003cli\u003eUncontrolled search path element (CWE-427) - CVE-2026-21427\u003c/li\u003e\u003c/ul\u003eKazuma Matsumoto of GMO Cybersecurity by IERAE, Inc. reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000004.html",
  "sec:cpe": [
    {
      "#text": "cpe:/o:pioneer:stellanova_aps-s301 series",
      "@product": "Stelllanova APS-S301 Series",
      "@vendor": "Pioneer Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:pioneer:stellanova_limited_aps-s202j-lm",
      "@product": "Stelllanova Limited APS-S202J-LM",
      "@vendor": "Pioneer Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:pioneer:stellanova_liteaps-s201jgl",
      "@product": "Stellanova Lite APS-S201JGL",
      "@vendor": "Pioneer Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:pioneer:stellanova_liteaps-s201jgr",
      "@product": "Stellanova Lite APS-S201JGR",
      "@vendor": "Pioneer Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:pioneer:stellanova_liteaps-s201jr",
      "@product": "Stellanova Lite APS-S201JR",
      "@vendor": "Pioneer Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:pioneer:stellanova_liteaps-s201js",
      "@product": "Stellanova Lite APS-S201JS",
      "@vendor": "Pioneer Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:pioneer:usb_dac_amp_aps-da101jgl",
      "@product": "USB DAC Amplifier APS-DA101JGL",
      "@vendor": "Pioneer Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:pioneer:usb_dac_amp_aps-da101jgr",
      "@product": "USB DAC Amplifier APS-DA101JGR",
      "@vendor": "Pioneer Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:pioneer:usb_dac_amp_aps-da101jr",
      "@product": "USB DAC Amplifier APS-DA101JR",
      "@vendor": "Pioneer Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:pioneer:usb_dac_amp_aps-da101js",
      "@product": "USB DAC Amplifier APS-DA101JS",
      "@vendor": "Pioneer Corporation",
      "@version": "2.2"
    }
  ],
  "sec:cvss": {
    "@score": "7.8",
    "@severity": "High",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000004",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN17956874/index.html",
      "@id": "JVN#17956874",
      "@source": "JVN"
    },
    {
      "#text": "https://jvn.jp/en/ta/JVNTA91240916/",
      "@id": "JVNTA#91240916",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-21427",
      "@id": "CVE-2026-21427",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "The installers for multiple PIONEER products may insecurely load Dynamic Link Libraries"
}

CVE-2026-21427 (GCVE-0-2026-21427)

Vulnerability from cvelistv5 – Published: 2026-01-08 04:12 – Updated: 2026-01-08 15:52 Unsupported When Assigned

Summary

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.

Severity ?

7.8 (High)


                        
                          CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.5 (High)


                        
                          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

CWE

CWE-427 - Uncontrolled Search Path Element

Assigner

jpcert

References

URL

Tags

	https://jpn.pioneer/ja/support/software/stellanov…
	https://jvn.jp/en/jp/JVN17956874/

Impacted products

Vendor

Product

Version

PIONEER CORPORATION

USB DAC Amplifier APS-DA101JS

Affected: all versions

PIONEER CORPORATION	USB DAC Amplifier APS-DA101JR	Affected: all versions
PIONEER CORPORATION	USB DAC Amplifier APS-DA101JGL	Affected: all versions
PIONEER CORPORATION	USB DAC Amplifier APS-DA101JGR	Affected: all versions
PIONEER CORPORATION	Stellanova Lite APS-S201JS	Affected: all versions
PIONEER CORPORATION	Stellanova Lite APS-S201JR	Affected: all versions
PIONEER CORPORATION	Stellanova Lite APS-S201JGL	Affected: all versions
PIONEER CORPORATION	Stellanova Lite APS-S201JGR	Affected: all versions
PIONEER CORPORATION	Stelllanova Limited APS-S202J-LM	Affected: all versions
PIONEER CORPORATION	Stelllanova APS-S301 series	Affected: all versions

Show details on NVD website

JSON

To clipboard

{
  "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"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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      }
    ],
    "cna": {
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          "product": "USB DAC Amplifier APS-DA101JS",
          "vendor": "PIONEER CORPORATION",
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          "versions": [
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            }
          ]
        },
        {
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          "vendor": "PIONEER CORPORATION",
          "versions": [
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            }
          ]
        },
        {
          "product": "Stellanova Lite APS-S201JS",
          "vendor": "PIONEER CORPORATION",
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        },
        {
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        },
        {
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          "versions": [
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        {
          "product": "Stelllanova Limited APS-S202J-LM",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "product": "Stelllanova APS-S301 series",
          "vendor": "PIONEER CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        }
      ],
      "descriptions": [
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        }
      ],
      "metrics": [
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            "baseScore": 7.8,
            "baseSeverity": "HIGH",
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      "problemTypes": [
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      "references": [
        {
          "url": "https://jpn.pioneer/ja/support/software/stellanova/dac_driver/"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

JVNDB-2026-000004

CVE-2026-21427 (GCVE-0-2026-21427)

Tags

Sightings

Nomenclature