Vulnerability-Lookup

JVNDB-2026-000091

Vulnerability from jvndb - Published: 2026-07-01 05:55 - Updated:2026-07-01 05:55

Severity

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

Summary

Seiko Solutions SkyBridge MB-A100/MB-A110 vulnerable to OS command injection

Details

SkyBridge MB-A100/MB-A110 provided by Seiko Solutions Inc. contains the following vulnerability.

OS command injection (CWE-78) - CVE-2026-50043

Takeshi Kuramori and Kaori Takashima of National Institute of Information and Communications Technology, Cybersecurity Research Institute 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/JVN20721579/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-50043
	OS Command Injection(CWE-78)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

	Seiko Solutions Inc.	SkyBridge MB-A100 firmware
	Seiko Solutions Inc.	SkyBridge MB-A110 firmware

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000091.html",
  "dc:date": "2026-07-01T14:55+09:00",
  "dcterms:issued": "2026-07-01T14:55+09:00",
  "dcterms:modified": "2026-07-01T14:55+09:00",
  "description": "SkyBridge MB-A100/MB-A110 provided by Seiko Solutions Inc. contains the following vulnerability.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/78.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eOS command injection (CWE-78) - CVE-2026-50043\u003c/li\u003e\u003c/ul\u003eTakeshi Kuramori and Kaori Takashima of National Institute of Information and Communications Technology, Cybersecurity Research Institute 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-2026-000091.html",
  "sec:cpe": [
    {
      "#text": "cpe:/o:seiko-sol:skybridge_mb-a100_firmware",
      "@product": "SkyBridge MB-A100 firmware",
      "@vendor": "Seiko Solutions Inc.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:seiko-sol:skybridge_mb-a110_firmware",
      "@product": "SkyBridge MB-A110 firmware",
      "@vendor": "Seiko Solutions Inc.",
      "@version": "2.2"
    }
  ],
  "sec:cvss": {
    "@score": "7.2",
    "@severity": "High",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000091",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN20721579/index.html",
      "@id": "JVN#20721579",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-50043",
      "@id": "CVE-2026-50043",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-78",
      "@title": "OS Command Injection(CWE-78)"
    }
  ],
  "title": "Seiko Solutions SkyBridge MB-A100/MB-A110 vulnerable to OS command injection"
}

CVE-2026-50043 (GCVE-0-2026-50043)

Vulnerability from cvelistv5 – Published: 2026-07-01 06:53 – Updated: 2026-07-01 12:24 Unsupported When Assigned

Summary

Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in SkyBridge MB-A100/MB-A110. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product with an administrative privilege.

Severity

7.2 (High)


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

8.6 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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 2026-07-01 12:24 UTC

CWE

CWE-78 - Improper neutralization of special elements used in an OS command ('OS Command Injection')

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://www.seiko-sol.co.jp/archives/94618/
https://jvn.jp/en/jp/JVN20721579/

Impacted products

1 product

Vendor	Product	Version
Seiko Solutions Inc.	SkyBridge MB-A100/MB-A110	Affected: all versions

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-50043",
                "options": [
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                    "Exploitation": "none"
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-01T12:24:19.749563Z",
                "version": "2.0.3"
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      }
    ],
    "cna": {
      "affected": [
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          "product": "SkyBridge MB-A100/MB-A110",
          "vendor": "Seiko Solutions Inc.",
          "versions": [
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        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
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        "dateUpdated": "2026-07-01T06:53:32.950Z",
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        "shortName": "jpcert"
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      "references": [
        {
          "url": "https://www.seiko-sol.co.jp/archives/94618/"
        },
        {
          "url": "https://jvn.jp/en/jp/JVN20721579/"
        }
      ],
      "tags": [
        "unsupported-when-assigned"
      ]
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  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
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    "dateReserved": "2026-06-08T06:52:54.348Z",
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    "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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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