Vulnerability-Lookup

JVNDB-2026-000100

Vulnerability from jvndb - Published: 2026-07-21 14:02 - Updated:2026-07-21 14:02

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

Vulnerability in certain IC chips of contactless IC card "FeliCa"

Details

For certain FeliCa IC chips shipped by Sony Corporation in or before 2017, a certain operation during cryptographic processing may compromise the intended security strength.

Missing cryptographic step (CWE-325) - CVE-2026-59776

KIRISHIKI Yudai of Unknown Technologies 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/JVN40509781/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-59776
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

Sony Corporation

Certain FeliCa IC chips shipped in or before 2017

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000100.html",
  "dc:date": "2026-07-21T14:02+09:00",
  "dcterms:issued": "2026-07-21T14:02+09:00",
  "dcterms:modified": "2026-07-21T14:02+09:00",
  "description": "For certain FeliCa IC chips shipped by Sony Corporation in or before 2017, a certain operation during cryptographic processing may compromise the intended security strength.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/325.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eMissing cryptographic step (CWE-325) - CVE-2026-59776\u003c/li\u003e\u003c/ul\u003eKIRISHIKI Yudai of Unknown Technologies 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-2026-000100.html",
  "sec:cpe": {
    "#text": "cpe:/h:sony:felica_ic_chips",
    "@product": "Certain FeliCa IC chips shipped in or before 2017",
    "@vendor": "Sony Corporation",
    "@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-2026-000100",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN40509781/index.html",
      "@id": "JVN#40509781",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-59776",
      "@id": "CVE-2026-59776",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Vulnerability in certain IC chips of contactless IC card \"FeliCa\""
}

CVE-2026-59776 (GCVE-0-2026-59776)

Vulnerability from cvelistv5 – Published: 2026-07-21 03:06 – Updated: 2026-07-21 13:26

Summary

Missing Cryptographic Step (CWE-325) vulnerability exists in certain FeliCa IC chips shipped in or before 2017. If the vulnerability is exploited, information stored in the IC chip may be read or tampered with.

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 (v2.0.3)

CWE

CWE-325 - Missing cryptographic step

Assigner

jpcert

References

2 references

URL	Tags
https://www.sony.co.jp/en/Products/felica/busines…
https://jvn.jp/en/jp/JVN40509781/

Impacted products

1 product

Vendor	Product	Version
Sony Corporation	FeliCa IC chips	Affected: shipped in or before 2017

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-59776",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-21T13:25:27.436650Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-21T13:26:02.801Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "FeliCa IC chips",
          "vendor": "Sony Corporation",
          "versions": [
            {
              "status": "affected",
              "version": "shipped in or before 2017"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Missing Cryptographic Step (CWE-325) vulnerability exists in certain FeliCa IC chips shipped in or before 2017. If the vulnerability is exploited, information stored in the IC chip may be read or tampered with."
        }
      ],
      "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": [
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      "problemTypes": [
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        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "url": "https://www.sony.co.jp/en/Products/felica/business/information/2025001.html"
        },
        {
          "url": "https://jvn.jp/en/jp/JVN40509781/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2026-59776",
    "datePublished": "2026-07-21T03:06:56.344Z",
    "dateReserved": "2026-07-09T08:23:34.922Z",
    "dateUpdated": "2026-07-21T13:26:02.801Z",
    "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.

Action not permitted

JVNDB-2026-000100

CVE-2026-59776 (GCVE-0-2026-59776)

Tags

Sightings

Nomenclature