Skip to main content
VulnerabilityPublished Updated

CVE-2026-111854: Tektronix 3 Series MDO · Path Traversal

Affects Tektronix 3 Series MDOSource CVE Database V5

0

Not known to be exploited · CVSS 8.1 High : upgrade to 1.21.1 soon.

Data as of 26 Oct 2026, 17:30 UTC

CVSS 3.1 base score
8.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.21.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Tektronix 3 Series MDO to 1.21.1.

Affected software

ProductAffectedFixed in
Tektronix3 Series MDOAffected
  • <1.21.1
Fixed in
  • 1.21.1

AI-suggested

A fix is available in Tektronix 3 Series MDO firmware version 1.21.1 and later. Users should upgrade to version 1.21.1 or above to remediate this vulnerability.

Description

Tektronix 3 Series MDO devices before version 1.21.1 contain a path traversal vulnerability in the SCPI FILESystem command interface. This flaw allows remote attackers with limited privileges to read or modify arbitrary files on the device due to insufficient validation of file paths. The vulnerability has a high severity with a CVSS score of 8.1, impacting confidentiality and integrity but not availability.

References

Community reviews

Loading reviews…