Is CVE-2026-111853 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-111853 being exploited in the wild.

How severe is CVE-2026-111853?

High severity, with a CVSS score of 8.8, published 17 October 2026.

Which products and versions are affected?

Tektronix 3 Series MDO before 1.21.1.

Is there a fix for CVE-2026-111853?

Yes: fixed in 1.21.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-111853 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-111853?

Check whether you run Tektronix 3 Series MDO at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-111853: Tektronix 3 Series MDO OS command injection via SCPI

CVE-2026-111853 · Severity: high · CVSS 8.8 · Published 2026-10-17

Tektronix 3 Series MDO is a mixed-domain oscilloscope used in electronics testing and measurement. A remote attacker can inject and execute arbitrary operating system commands with elevated privileges by sending a crafted SCPI command over the network, potentially gaining complete control of the device.

Technologies: Tektronix 3 Series MDO. Vendors: Tektronix.

Quick answers

Is CVE-2026-111853 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-111853 being exploited in the wild.
How severe is CVE-2026-111853?: High severity, with a CVSS score of 8.8, published 17 October 2026.
Which products and versions are affected?: Tektronix 3 Series MDO before 1.21.1.
Is there a fix for CVE-2026-111853?: Yes: fixed in 1.21.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-111853 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-111853?: Check whether you run Tektronix 3 Series MDO at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 1.21.1

Technical details

The vulnerability is an OS command injection in the FILESystem:MOUNT:DRIve SCPI command handler caused by insufficient input sanitization. A remote attacker can exploit this to execute arbitrary OS commands with elevated privileges; no authentication or user interaction is required. A fix is available in version 1.21.1 and later.

Affected products

Tektronix 3 Series MDO before 1.21.1

Timeline

2026-10-17: disclosed

References

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