A short write-up on a tiny update introduced in NT kernel version 10.0.15063 inside nt!SepCreateAccessStateFromSubjectContext that can mess up with your kernel exploits in case you abuse _SEP_TOKEN_PRIVILEGES.Enabled through a Read-Write Primitive to gain EoP.
Read more here.
Enjoy,
kyREcon
Article Link: http://www.anti-reversing.com/2251/