High severity8.1NVD Advisory· Published Oct 17, 2026

CVE-2026-111854

Description

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 validation of file paths supplied to filesystem access commands.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Tektronix/3 Series MDOllm-create
Range: <1.21.1

Patches

Vulnerability mechanics

References

download.tek.com/document/TEK-PSA-002-092026.pdfnvd
www.tek.com/en/products/oscilloscopes/3-series-mdonvd

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