CVE-2015-6112

SChannel in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 lacks the required extended master-secret binding support to ensure that a server's X.509 certificate is the same during renegotiation as it was before renegotiation, which allows man-in-the-middle attackers to obtain sensitive information or modify TLS session data via a "triple handshake attack," aka "Schannel TLS Triple Handshake Vulnerability."
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.8 UNKNOWN
NETWORK
MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N
microsoftCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 91%
VendorProductVersion
microsoftwindows_7
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microsoftwindows_8
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microsoftwindows_8.1
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microsoftwindows_rt
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microsoftwindows_rt_8.1
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microsoftwindows_server_2008
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microsoftwindows_server_2012
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microsoftwindows_vista
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𝑥
= Vulnerable software versions