{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-111855", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-10-17T01:06:42.131Z", "datePublished": "2026-10-17T02:09:21.352Z", "dateUpdated": "2026-10-17T02:09:21.352Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "3 Series MDO", "vendor": "Tektronix", "versions": [{"lessThan": "1.21.1", "status": "affected", "version": "0", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1. A path traversal vulnerability exists in the web management interface of the device. Insufficient validation of user-supplied file paths allows remote attackers to read arbitrary files accessible to the application. Depending on configuration, exploitation may be possible without authentication."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (Path Traversal)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-10-17T02:09:21.352Z"}, "references": [{"url": "https://www.tek.com/en/products/oscilloscopes/3-series-mdo"}, {"url": "https://download.tek.com/document/TEK-PSA-002-092026.pdf"}], "x_generator": {"engine": "CVE-Request-form 0.0.1"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "3 Series MDO", "vendor": "Tektronix", "versions": [{"lessThan": "1.21.1", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1. A path traversal vulnerability exists in the web management interface of the device. Insufficient validation of user-supplied file paths allows remote attackers to read arbitrary files accessible to the application. Depending on configuration, exploitation may be possible without authentication."}], "id": "CVE-2026-111855", "lastModified": "2026-10-17T02:17:18.877", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-10-17T02:17:18.877", "references": [{"source": "cve@mitre.org", "url": "https://download.tek.com/document/TEK-PSA-002-092026.pdf"}, {"source": "cve@mitre.org", "url": "https://www.tek.com/en/products/oscilloscopes/3-series-mdo"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "cve@mitre.org", "type": "Primary"}]}

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{"created": "2026-10-17T03:45:01.942410+00:00", "title": "Web Management Interface Path Traversal Exploitable Without Authentication on Tektronix 3 Series MDO", "updated": "2026-10-17T03:45:01.942425+00:00", "vendors": []}