{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-9259", "assignerOrgId": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "state": "PUBLISHED", "assignerShortName": "Canon", "dateReserved": "2026-05-21T23:14:50.204Z", "datePublished": "2026-06-15T23:36:28.761Z", "dateUpdated": "2026-06-16T12:43:21.760Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "shortName": "Canon", "dateUpdated": "2026-06-15T23:36:28.761Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-295", "description": "CWE-295 Improper certificate validation", "type": "CWE"}]}], "affected": [{"vendor": "Canon Inc.", "product": "EOS Network Setting Tool for Windows", "versions": [{"status": "affected", "version": "1.5.0 or earlier"}], "defaultStatus": "unaffected"}, {"vendor": "Canon Inc.", "product": "EOS Network Setting Tool for macOS", "versions": [{"status": "affected", "version": "1.5.0 or earlier"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier"}]}], "references": [{"url": "https://psirt.canon/advisory-information/cp2026-005/", "tags": ["vendor-advisory"]}, {"url": "https://canon.jp/support/support-info/260615vulnerability-response", "tags": ["vendor-advisory"]}, {"url": "https://www.usa.canon.com/about-us/to-our-customers/cpa2026-005-vulnerability-remediation-for-eos-network-setting-tool", "tags": ["vendor-advisory"]}, {"url": "https://www.canon-europe.com/support/product-security/", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"}}], "credits": [{"lang": "en", "value": "This issue was discovered by Ryan Hausknecht (@haus3c)", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-16T12:43:13.289990Z", "id": "CVE-2026-9259", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T12:43:21.760Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-9259", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-16T12:43:13.289990Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T12:43:17.763Z"}}], "cna": {"source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "This issue was discovered by Ryan Hausknecht (@haus3c)"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.1, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Canon Inc.", "product": "EOS Network Setting Tool for Windows", "versions": [{"status": "affected", "version": "1.5.0 or earlier"}], "defaultStatus": "unaffected"}, {"vendor": "Canon Inc.", "product": "EOS Network Setting Tool for macOS", "versions": [{"status": "affected", "version": "1.5.0 or earlier"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://psirt.canon/advisory-information/cp2026-005/", "tags": ["vendor-advisory"]}, {"url": "https://canon.jp/support/support-info/260615vulnerability-response", "tags": ["vendor-advisory"]}, {"url": "https://www.usa.canon.com/about-us/to-our-customers/cpa2026-005-vulnerability-remediation-for-eos-network-setting-tool", "tags": ["vendor-advisory"]}, {"url": "https://www.canon-europe.com/support/product-security/", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "Vulnogram 1.0.2"}, "descriptions": [{"lang": "en", "value": "Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier", "supportingMedia": [{"type": "text/html", "value": "Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-295", "description": "CWE-295 Improper certificate validation"}]}], "providerMetadata": {"orgId": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "shortName": "Canon", "dateUpdated": "2026-06-15T23:36:28.761Z"}}}, "cveMetadata": {"cveId": "CVE-2026-9259", "state": "PUBLISHED", "dateUpdated": "2026-06-16T12:43:21.760Z", "dateReserved": "2026-05-21T23:14:50.204Z", "assignerOrgId": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "datePublished": "2026-06-15T23:36:28.761Z", "assignerShortName": "Canon"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier"}], "id": "CVE-2026-9259", "lastModified": "2026-06-16T14:53:25.910", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "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": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/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": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "type": "Secondary"}]}, "published": "2026-06-16T00:16:35.623", "references": [{"source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "url": "https://canon.jp/support/support-info/260615vulnerability-response"}, {"source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "url": "https://psirt.canon/advisory-information/cp2026-005/"}, {"source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "url": "https://www.canon-europe.com/support/product-security/"}, {"source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "url": "https://www.usa.canon.com/about-us/to-our-customers/cpa2026-005-vulnerability-remediation-for-eos-network-setting-tool"}], "sourceIdentifier": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-295"}], "source": "f98c90f0-e9bd-4fa7-911b-51993f3571fd", "type": "Secondary"}]}

{}