MajorCritical vulnerability

CVE-2026-111854 (CVSS 8.1)

NVD · officialPublished Oct 17, 2026Risk 37/100

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.

Technical details

CVSS

8.1

AV:NetworkAC:LowPR:LowUI:NoneC:HighI:HighA:None

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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