CVE-2026-111854

high

An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1.

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.

CVSS

8.1

8.1 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Severity source: NVD CVSS v3.1 (cve@mitre.org)

Timeline (UTC)

Published: 2026-10-17 02:17

Modified: 2026-10-19 22:17

NVD status: Awaiting Analysis

Last synced 1 day ago

Verified against the source API 2026-10-27 07:03 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-22

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

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

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 07:03 UTC · record ↗

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