Windows Remote Desktop - any known vulnerabilities?

[Chuck Mayers <chuck.mayers () gmail com>]

About 6 months ago, I wanted to connect to my home computer (which
runs Windows 7) from work, so I enabled Remote Desktop, with the
option "Allow connections from computers running any version of Remote
Desktop (less secure)". It was a one time thing, and I've never used
it since. I left these options on.

Today I noticed an event in the event log:

The RDP protocol component X.224 detected an error in the protocol
stream and has disconnected the client.

This same error also appears one other time, 2 months ago.

I've googled the message, it sounds like it could simply be an error
you'd get if a remote user closed his session... except that there
shouldn't be any remote users! At the time of the event, I'm not even
sure if I was using the computer, but I know that I have not used RDP
for 6 months and no one else should be connecting.

Are there any known Remote Desktop vulnerabilities (for a PC acting as
the server) that I should be worried about?

Is there any other way this event would be in the event log, besides
the obvious - someone had connected to my PC?

I looked in the event log for anything obviously strange around the
times of these events, and I don't see anything. The PC seems fine and
I don't have any reason to think it was compromised except for this
strange event message.

I'm wondering if there is anything else I can check for, to figure out
what this cryptic message means.

Thanks

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