Microsoft Terminal Server using Remote Desktop Protocol (RDP) 5.2 stores an RSA private key in mstlsapi.dll and uses it to sign a certificate, which allows remote attackers to spoof public keys of legitimate servers and conduct man-in-the-middle attacks.
http://secunia.com/advisories/15605/
http://www.oxid.it/downloads/rdp-gbu.pdf
http://www.securityfocus.com/bid/13818
https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12441
Source: MITRE
Published: 2005-06-01
Updated: 2018-03-28
Type: NVD-CWE-Other
Base Score: 6.4
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N
Impact Score: 4.9
Exploitability Score: 10
Severity: MEDIUM