CVE-2026-63563

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://corporate.jp.sharp/info/product-security/advisory-list/2026-004/
https://global.sharp/corporate/info/product-security/advisory-list/2026-004/
https://jvn.jp/en/vu/JVNVU98759887/
https://www.toshibatec.co.jp/news/info/20260731-01.html
https://www.toshibatec.com/information/20260731_01.html

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-03 09:17

Updated : 2026-08-03 17:40

NVD link : CVE-2026-63563

Mitre link : CVE-2026-63563

CVE.ORG link : CVE-2026-63563

JSON object : View

Products Affected

No product.

CWE

CWE-1188

Initialization of a Resource with an Insecure Default

{"id": "CVE-2026-63563", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-63563", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-03T11:11:19.731090Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "vultures@jpcert.or.jp", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "vultures@jpcert.or.jp", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.9, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "vultures@jpcert.or.jp", "affectedData": [{"vendor": "Sharp Corporation", "product": "Sharp MFPs", "versions": [{"status": "affected", "version": "see the information provided by Sharp Corporation"}]}, {"vendor": "Toshiba Tec Corporation", "product": "Toshiba Tec MFPs", "versions": [{"status": "affected", "version": "see the information provided by Toshiba Tec"}]}]}], "published": "2026-08-03T09:17:06.310", "references": [{"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", "source": "vultures@jpcert.or.jp"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "vultures@jpcert.or.jp", "description": [{"lang": "en", "value": "CWE-1188"}]}], "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."}], "lastModified": "2026-08-03T17:40:27.300", "sourceIdentifier": "vultures@jpcert.or.jp"}