Path Traversal Vulnerability in Tektronix 3 Series MDO Devices
CVE-2026-111854

8.1HIGH

Key Information:

Vendor

Tektronix

Status
3 Series Mdo
Vendor
CVE Published:
17 October 2026

What is CVE-2026-111854?

A path traversal vulnerability was identified in the SCPI FILESystem command interface of Tektronix 3 Series MDO devices prior to version 1.21.1. This flaw enables remote attackers to exploit inadequate validation of file paths, allowing them to read or manipulate arbitrary files on the device. This vulnerability poses a significant risk to the integrity and confidentiality of device data.

Affected Version(s)

3 Series MDO 0 < 1.21.1

References

https://www.tek.com/en/products/oscilloscopes/3-series-mdo
https://download.tek.com/document/TEK-PSA-002-092026.pdf

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.