CVE-2026-111853 Tektronix 3 Series MDO - Command Injection

Tektronix 3 Series MDO < 1.21.1 contains a command injection caused by insufficient neutralization of user input in FILESystem:MOUNT:DRIve SCPI command handler, letting remote attackers execute OS commands with elevated privileges, exploit requires remote access to SCPI commands.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.86% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
17 October 2026
Updated
19 October 2026
Weakness
CWE-78

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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