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…

published November 11, 2015

CVSS
—
EPSS
3%
Percentile
86.4
In the wild
Unconfirmed
What it is

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."

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02800 · 86.4th percentile
Published
2015-11-11T11:00Z
EPSS history
Timeline
  • 11 NOV 11:00Z
    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…
    cvelistv5