Vulnerability-Lookup

JVNDB-2026-000127

Vulnerability from jvndb - Published: 2026-09-02 04:37 - Updated:2026-09-02 04:37

Severity

6.8 (Medium) - cvssV3_0 - CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

Multiple vulnerabilities in ShizenBox2

Details

ShizenBox2 provided by Shizen Connect Inc. contains multiple vulnerabilities listed below.

Improper physical access control (CWE-1263) - CVE-2026-80253
Authorization bypass through user-controlled key (CWE-639) - CVE-2026-80254

CVE-2026-80253 Naohide Waguri of PwC Consulting LLC reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership. CVE-2026-80254 Raaqim Mohammed of PwC Consulting LLC 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/JVN91715694/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-80253
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-80254
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

Shizen Connect Inc.

ShizenBox2

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000127.html",
  "dc:date": "2026-09-02T13:37+09:00",
  "dcterms:issued": "2026-09-02T13:37+09:00",
  "dcterms:modified": "2026-09-02T13:37+09:00",
  "description": "ShizenBox2 provided by Shizen Connect Inc. contains multiple vulnerabilities listed below.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/1263.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003ca href=\u0027https://cwe.mitre.org/data/definitions/639.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eImproper physical access control (CWE-1263) - CVE-2026-80253\u003c/li\u003e\u003cli\u003eAuthorization bypass through user-controlled key (CWE-639) - CVE-2026-80254\u003c/li\u003e\u003c/ul\u003eCVE-2026-80253\r\nNaohide Waguri of PwC Consulting LLC reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.\r\n\r\nCVE-2026-80254\r\nRaaqim Mohammed of PwC Consulting LLC 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-2026-000127.html",
  "sec:cpe": {
    "#text": "cpe:/h:misc:shizen_connect_shizenbox2",
    "@product": "ShizenBox2",
    "@vendor": "Shizen Connect Inc.",
    "@version": "2.2"
  },
  "sec:cvss": {
    "@score": "6.8",
    "@severity": "Medium",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000127",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN91715694/index.html",
      "@id": "JVN#91715694",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-80253",
      "@id": "CVE-2026-80253",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-80254",
      "@id": "CVE-2026-80254",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Multiple vulnerabilities in ShizenBox2"
}

CVE-2026-80253 (GCVE-0-2026-80253)

Vulnerability from cvelistv5 – Published: 2026-09-03 08:54 – Updated: 2026-09-03 13:07

Summary

An improper physical access control issue exists in ShizenBox2 (dev-conf). If exploited, an attacker with physical access to the product may execute bootloader commands without authentication.

Severity

6.8 (Medium)


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

7 (High)


                        
                          CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-03 13:07 UTC

CWE

CWE-1263 - Improper physical access control

Assigner

jpcert CNA under the jpcert root

CNA scorecard C 64/100 over 190 records in the last 180 days details

References

2 references

URL	Tags
https://www.se-digital.net/wp-content/uploads/202…
https://jvn.jp/en/jp/JVN91715694/

Impacted products

1 product

Vendor	Product	Version
Shizen Connect Inc.	ShizenBox2 (dev-conf)	Affected: 0 , ≤ v1.0.10 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-80253",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-03T13:07:02.934510Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-03T13:07:59.048Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "ShizenBox2 (dev-conf)",
          "vendor": "Shizen Connect Inc.",
          "versions": [
            {
              "lessThanOrEqual": "v1.0.10",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An improper physical access control issue exists in ShizenBox2 (dev-conf). If exploited, an attacker with physical access to the product may execute bootloader commands without authentication."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV4_0": {
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1263",
              "description": "Improper physical access control",
              "lang": "en-US",
              "type": "CWE"
            }
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      "providerMetadata": {
        "dateUpdated": "2026-09-03T08:54:08.668Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "url": "https://www.se-digital.net/wp-content/uploads/2026/08/CVE-2026-80253.pdf"
        },
        {
          "url": "https://jvn.jp/en/jp/JVN91715694/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2026-80253",
    "datePublished": "2026-09-03T08:54:08.668Z",
    "dateReserved": "2026-08-26T06:06:54.184Z",
    "dateUpdated": "2026-09-03T13:07:59.048Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-80254 (GCVE-0-2026-80254)

Vulnerability from cvelistv5 – Published: 2026-09-03 08:53 – Updated: 2026-09-03 13:11

Summary

Authorization bypass through user-controlled key issue exists in ShizenBox2 (edge-app). If exploited, an attacker who can log in to the product may change the other user's password.

Severity

6.5 (Medium)


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

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-03 13:10 UTC

CWE

CWE-639 - Authorization bypass through user-controlled key

Assigner

jpcert CNA under the jpcert root

CNA scorecard C 64/100 over 190 records in the last 180 days details

References

2 references

URL	Tags
https://www.se-digital.net/wp-content/uploads/202…
https://jvn.jp/en/jp/JVN91715694/

Impacted products

1 product

Vendor	Product	Version
Shizen Connect Inc.	ShizenBox2 (edge-app)	Affected: 0 , ≤ v3.1.15 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-80254",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-03T13:10:58.945193Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-03T13:11:07.938Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "ShizenBox2 (edge-app)",
          "vendor": "Shizen Connect Inc.",
          "versions": [
            {
              "lessThanOrEqual": "v3.1.15",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Authorization bypass through user-controlled key issue exists in ShizenBox2 (edge-app). If exploited, an attacker who can log in to the product may change the other user\u0027s password."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV4_0": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "Authorization bypass through user-controlled key",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-03T08:53:53.953Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "url": "https://www.se-digital.net/wp-content/uploads/2026/08/CVE-2026-80254.pdf"
        },
        {
          "url": "https://jvn.jp/en/jp/JVN91715694/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2026-80254",
    "datePublished": "2026-09-03T08:53:53.953Z",
    "dateReserved": "2026-08-26T06:06:54.184Z",
    "dateUpdated": "2026-09-03T13:11:07.938Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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JVNDB-2026-000127

CVE-2026-80253 (GCVE-0-2026-80253)

CVE-2026-80254 (GCVE-0-2026-80254)

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