{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-59957", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2025-09-23T18:19:06.954Z", "datePublished": "2025-10-09T15:43:23.110Z", "dateUpdated": "2025-10-09T19:49:29.942Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "platforms": ["EX4600", "QFX5000"], "product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "21.4R3", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "22.2R3-S3", "status": "affected", "version": "22.2", "versionType": "semver"}]}], "datePublic": "2025-10-08T12:20:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "An Origin Validation Error vulnerability in an insufficient protected file of Juniper Networks Junos OS on&nbsp;EX4600 Series and QFX5000 Series allows an unauthenticated attacker with physical access to the device to create a backdoor which allows complete control of the system.<br><br>When a device isn't configured with a root password, an attacker can modify a specific file. 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For details on the extraction procedure please contact Juniper Technical Assistance Center (JTAC).\n\nTo restore the device to a trusted initial configuration the system needs to be reinstalled from physical media.\u00a0\n\nThis issue affects Junos OS on EX4600 Series and QFX5000 Series:\n\n\n\n * All versions before 21.4R3,\n * 22.2 versions before 22.2R3-S3."}], "id": "CVE-2025-59957", "lastModified": "2026-01-23T18:35:32.800", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 5.9, "source": "sirt@juniper.net", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NO", "Recovery": "USER", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "PHYSICAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.0, "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": "NONE", "valueDensity": "NOT_DEFINED", "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/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:N/R:U/V:X/RE:H/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "HIGH"}, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2025-10-09T16:15:45.657", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://support.juniper.net/support/requesting-support/"}, {"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://supportportal.juniper.net/JSA103146"}, {"source": "sirt@juniper.net", "tags": ["Technical Description"], "url": "https://supportportal.juniper.net/s/article/EX-QFX-Procedure-to-format-install-QFX5K-device-using-a-USB"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-346"}], "source": "sirt@juniper.net", "type": "Secondary"}]}

{}

{"created": "2025-10-10T11:18:03.538785+00:00", "updated": "2025-10-10T11:18:03.538820+00:00", "vendors": ["juniper", "juniper$PRODUCT$junos_os"]}