What’s Vulnerable › Vulnerabilities

CVE-2026-111853

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-17 · updated 2026-10-19
• Weakness: CWE-78

Description

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.

Affected products

• Tektronix 3 Series MDO: before 1.21.1 — fixed in 1.21.1

How to fix

Upgrade to a fixed version: Tektronix 3 Series MDO 1.21.1. Check the vendor advisory for mitigations.

References

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

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