CVE-2026-111854
HighCVSS 8.1Summary
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.
Risk Assessment
An attacker could read or modify arbitrary files on the device, potentially leading to system integrity compromise or data leakage. This could result in unauthorized configuration changes or malware installation.
Recommendation
Update Tektronix 3 Series MDO device firmware to version 1.21.1 or later. Restrict access to the SCPI interface to trusted networks.
Other vulnerabilities in Tektronix 3 Series MDO
See all- CVE-2026-111855High
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.
- CVE-2026-111853High
An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1. An OS command injection vulnerability exists in the FILESystem:MOUNT:DRIve SCPI command handler. Insufficient neutralization of user-supplied input allows remote attackers to execute arbitrary operating system commands with elevated privileges.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS