FKIE_CVE-2026-63563

Vulnerability from fkie_nvd - Published: 2026-08-03 09:17 - Updated: 2026-08-03 17:40
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
Sharp and Toshiba Tec MFPs (multifunction printers) for a certain market have been shipped with the user authentication feature disabled in the initial configuration. When used with the initial configuration, the address book editing and a range of features related to Document Filing can be accessed without user authentication. Products intended for the Japanese market are not affected.
References
vultures@jpcert.or.jphttps://corporate.jp.sharp/info/product-security/advisory-list/2026-004/
vultures@jpcert.or.jphttps://global.sharp/corporate/info/product-security/advisory-list/2026-004/
vultures@jpcert.or.jphttps://jvn.jp/en/vu/JVNVU98759887/
vultures@jpcert.or.jphttps://www.toshibatec.co.jp/news/info/20260731-01.html
vultures@jpcert.or.jphttps://www.toshibatec.com/information/20260731_01.html
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Sharp MFPs",
          "vendor": "Sharp Corporation",
          "versions": [
            {
              "status": "affected",
              "version": "see the information provided by Sharp Corporation"
            }
          ]
        },
        {
          "product": "Toshiba Tec MFPs",
          "vendor": "Toshiba Tec Corporation",
          "versions": [
            {
              "status": "affected",
              "version": "see the information provided by Toshiba Tec"
            }
          ]
        }
      ],
      "source": "vultures@jpcert.or.jp"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sharp and Toshiba Tec MFPs (multifunction printers) for a certain market have been shipped with the user authentication feature disabled in the initial configuration. When used with the initial configuration, the address book editing and a range of features related to Document Filing can be accessed without user authentication.\r\nProducts intended for the Japanese market are not affected."
    }
  ],
  "id": "CVE-2026-63563",
  "lastModified": "2026-08-03T17:40:27.300",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "vultures@jpcert.or.jp",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "vultures@jpcert.or.jp",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-63563",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-03T11:11:19.731090Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-03T09:17:06.310",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://corporate.jp.sharp/info/product-security/advisory-list/2026-004/"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://global.sharp/corporate/info/product-security/advisory-list/2026-004/"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://jvn.jp/en/vu/JVNVU98759887/"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://www.toshibatec.co.jp/news/info/20260731-01.html"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://www.toshibatec.com/information/20260731_01.html"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1188"
        }
      ],
      "source": "vultures@jpcert.or.jp",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • 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.


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