The IPv6 implementation in Microsoft Windows 8, Windows Server 2012, and Windows RT does not properly validate packets, which allows remote attackers to cause a denial of service (system hang) via crafted ICMPv6 Router Advertisement packets, aka "TCP/IP Version 6 (IPv6) Denial of Service Vulnerability."
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.