{"id":"CVE-2026-111854","title":"An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1","summary":"An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1. A path traversal vulnerability in the SCPI FILESystem command interface allows remote attackers to read or modify arbitrary files on the device through insufficient…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cvssSource":"cna","cwe":["CWE-22"],"vendor":"Tektronix","product":"3 Series MDO","affected":["3_series_mdo < 1.21.1"],"published":"2026-10-17","updated":"2026-10-17","sourceUpdated":"2026-10-17T02:08:50.037Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111854","references":[{"url":"https://www.tek.com/en/products/oscilloscopes/3-series-mdo"},{"url":"https://download.tek.com/document/TEK-PSA-002-092026.pdf"}],"tags":["cve.org"],"ingestedAt":"2026-10-17T02:57:58.443Z","slug":"CVE-2026-111854","body":"## Overview\n\nAn issue was discovered on Tektronix 3 Series MDO devices before 1.21.1. A path traversal vulnerability in the SCPI FILESystem command interface allows remote attackers to read or modify arbitrary files on the device through insufficient validation of file paths supplied to filesystem access commands.\n\n## Affected\n\n- `3_series_mdo < 1.21.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}