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They're both rated medium. Makes me wonder how one come across either of these vulnerabilities in practice.

Telnet is disabled by default since windows 7 (that's 10 years ago). You wouldn't see anything internal with telnet unless it's seriously misconfigured or employees doing their own thing to circumvent IT. This should one maybe be upped to high.

self signed certificates on the other hand. either there is someone too lazy to obtain public certificates or the scanning tool doesn't accept the internal PKI.



Endpoints in a network aren't all PCs :) In some industries (e.g. SCADA) Telnet is very much alive.

Also even on the Internet, Shodan has about 5.2Milllion hosts with the Telnet port exposed...




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