CVE-2026-21404

{"id": "CVE-2026-21404", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21404", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-05T18:25:51.749669Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "ics-cert@hq.dhs.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.3, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 1.0}], "cvssMetricV40": [{"type": "Secondary", "source": "ics-cert@hq.dhs.gov", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.8, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/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": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "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": "ics-cert@hq.dhs.gov", "affectedData": [{"vendor": "NAVTOR", "product": "NavBox", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "4.16.1.20"}, {"status": "unaffected", "version": "4.17.2.6"}], "defaultStatus": "unaffected"}]}], "published": "2026-06-04T20:16:57.083", "references": [{"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-155-01.json", "tags": ["Third Party Advisory"], "source": "ics-cert@hq.dhs.gov"}, {"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-155-01", "tags": ["Mitigation", "US Government Resource"], "source": "ics-cert@hq.dhs.gov"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "ics-cert@hq.dhs.gov", "description": [{"lang": "en", "value": "CWE-798"}]}], "descriptions": [{"lang": "en", "value": "NAVTOR NavBox through version 4.16.1.20 contains hard-coded credentials within its Windows Communication Foundation (SOAP) implementation. If the SOAP functionality is enabled, a local attacker can extract credentials to bypass the intended transfer workflow. Successful authentication against the SOAP interface grants access to privileged WCF methods, enabling an attacker to write or overwrite files within application-defined paths."}, {"lang": "es", "value": "NAVTOR NavBox hasta la versi\u00f3n 4.16.1.20 contiene credenciales codificadas de forma r\u00edgida dentro de su implementaci\u00f3n de Windows Communication Foundation (SOAP). Si la funcionalidad SOAP est\u00e1 habilitada, un atacante local puede extraer credenciales para eludir el flujo de trabajo de transferencia previsto. La autenticaci\u00f3n exitosa contra la interfaz SOAP otorga acceso a m\u00e9todos WCF privilegiados, permitiendo a un atacante escribir o sobrescribir archivos dentro de rutas definidas por la aplicaci\u00f3n."}], "lastModified": "2026-07-22T20:10:00.127", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:navtor:navbox_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EDAFE658-E7B5-4EA1-8EDB-2A1B0949AF16", "versionEndIncluding": "4.16.1.20"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:navtor:navbox:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "C140C319-E253-456F-B667-FEF0F3E4DC35"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "ics-cert@hq.dhs.gov"}