CVE-2014-1771: Microsoft Internet Explorer

Medium severity, CVSS 6.8. EPSS: 7.6% chance of exploitation in the next 30 days.

SChannel in Microsoft Internet Explorer 6 through 11 does not 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 "TLS Server Certificate Renegotiation Vulnerability."

Affected products

• Microsoft Internet Explorer: version 6 only; version 7 only; version 8 only; version 9 only; version 10 only; version 11 only

Published 2014-06-11. Last modified 2026-06-17.