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

Tektronix 3 Series MDO < 1.21.1 contains a path traversal caused by insufficient validation of file paths in SCPI FILESystem command interface, letting remote attackers read or modify arbitrary files, exploit requires network access.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.39% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Read, File System Write
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published
17 October 2026
Updated
19 October 2026
Weakness
CWE-22

Vendor fix

Update to version 1.21.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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