MinorCritical vulnerability
CVE-2026-111855 (CVSS 7.5)
NVD · officialPublished Oct 17, 2026Risk 23/100
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.
Technical details
CVSS
7.5
AV:NetworkAC:LowPR:NoneUI:NoneC:HighI:NoneA: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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