CVE-2026-111854 [HIGH] – An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1. A path traversal

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.