The Telnet Client must not be installed on the system.

From Windows 10 Security Technical Implementation Guide

Associated with: CCI-000382

SV-77875r1_rule The Telnet Client must not be installed on the system.

Vulnerability discussion

Some protocols and services do not support required security features, such as encrypting passwords or traffic.

Check content

The "Telnet Client" is not installed by default. Verify it has not been installed. Navigate to the Windows\System32 directory. If the "telnet" application exists, this is a finding.

Fix text

Uninstall "Telnet Client" from the system. Run "Programs and Features". Select "Turn Windows Features on or off". De-select "Telnet Client".

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