jvndb - jvndb-2026-035794

jvndb-2026-035794

Vulnerability from jvndb

Published

2026-09-29 13:35

Modified

2026-09-29 13:35

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

Multiple vulnerabilities in BUFFALO Wi-Fi Products

Details

The web configuration user interfaces of Wi-Fi products provided by BUFFALO INC. contain multiple vulnerabilities listed below.<a href='https://cwe.mitre.org/data/definitions/78.html' target='_blank'></a><a href='https://cwe.mitre.org/data/definitions/121.html' target='_blank'></a><ul><li>OS command injection (CWE-78) - CVE-2026-86530</li><li>Stack-based buffer overflow (CWE-121) - CVE-2026-95104</li></ul>Veeti Punnonen reported these vulnerabilities to JPCERT/CC. JPCERT/CC coordinated with the developer.

References

Type

URL

	JVN	https://jvn.jp/en/vu/JVNVU94863997/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-86530
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-95104
	Stack-based Buffer Overflow(CWE-121)	https://cwe.mitre.org/data/definitions/121.html
	OS Command Injection(CWE-78)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

	BUFFALO INC.	WSR-300HP
	BUFFALO INC.	WEX-G300

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-035794.html",
  "dc:date": "2026-09-29T13:35+09:00",
  "dcterms:issued": "2026-09-29T13:35+09:00",
  "dcterms:modified": "2026-09-29T13:35+09:00",
  "description": "The web configuration user interfaces of Wi-Fi products provided by BUFFALO INC. contain multiple vulnerabilities listed below.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/78.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003ca href=\u0027https://cwe.mitre.org/data/definitions/121.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eOS command injection (CWE-78) - CVE-2026-86530\u003c/li\u003e\u003cli\u003eStack-based buffer overflow (CWE-121) - CVE-2026-95104\u003c/li\u003e\u003c/ul\u003eVeeti Punnonen reported these vulnerabilities to JPCERT/CC.\r\nJPCERT/CC coordinated with the developer.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-035794.html",
  "sec:cpe": [
    {
      "#text": "cpe:/h:buffalo_inc:wsr-300hp",
      "@product": "WSR-300HP",
      "@vendor": "BUFFALO INC.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:buffalo_inc:wex-g300",
      "@product": "WEX-G300",
      "@vendor": "BUFFALO 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-2026-035794",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/vu/JVNVU94863997/index.html",
      "@id": "JVNVU#94863997",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-86530",
      "@id": "CVE-2026-86530",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-95104",
      "@id": "CVE-2026-95104",
      "@source": "CVE"
    },
    {
      "#text": "https://cwe.mitre.org/data/definitions/121.html",
      "@id": "CWE-121",
      "@title": "Stack-based Buffer Overflow(CWE-121)"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-78",
      "@title": "OS Command Injection(CWE-78)"
    }
  ],
  "title": "Multiple vulnerabilities in BUFFALO Wi-Fi Products"
}

CVE-2026-86530 (GCVE-0-2026-86530)

Vulnerability from cvelistv5

Published

2026-09-28 08:14

Modified

2026-09-30 12:33

Severity ?

7.2 (High) - CVSS:3.1/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

CWE

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

Summary

BUFFALO Wi-Fi products handle some web form input improperly to assemble command line strings internally. An administrative user may send a crafted HTTP request and execute an arbitrary OS command.

References

URL

Tags

	https://www.buffalo.jp/news/detail/20260928-01.html
	https://jvn.jp/en/vu/JVNVU94863997/

Impacted products

Vendor

Product

Version

Version: 0 ≤

Version: 0 ≤

Show details on NVD website

JSON

To clipboard

{
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      {
        "metrics": [
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                "id": "CVE-2026-86530",
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              "version": "0",
              "versionType": "semver"
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      "descriptions": [
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          "lang": "en",
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      ],
      "metrics": [
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

CVE-2026-95104 (GCVE-0-2026-95104)

Vulnerability from cvelistv5

Published

2026-09-28 08:14

Modified

2026-09-30 13:45

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CWE

CWE-121 - Stack-based buffer overflow

Summary

Stack-based buffer overflow vulnerability exists in BUFFALO Wi-Fi products. A non-authenticated crafted HTTP request may cause a denial-of-service (DoS) condition.

References

URL

Tags

	https://www.buffalo.jp/news/detail/20260928-01.html
	https://jvn.jp/en/vu/JVNVU94863997/

Impacted products

Vendor

Product

Version

Version: 0 ≤

Version: 0 ≤

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-95104",
                "options": [
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-30T13:45:03.286394Z",
                "version": "2.0.3"
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      }
    ],
    "cna": {
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          "product": "WSR-300HP",
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              "version": "0",
              "versionType": "semver"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

jvndb-2026-035794

Vulnerability from jvndb

CVE-2026-86530 (GCVE-0-2026-86530)

Vulnerability from cvelistv5

CVE-2026-95104 (GCVE-0-2026-95104)

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature