In Shanda MapleStory Online V160, the SdoKeyCrypt.sys driver allows privilege escalation to NT AUTHORITY\SYSTEM because of not validating the IOCtl 0x8000c01c input value, leading to an integer signedness error and a heap-based buffer underflow.Referenceshttps://github.com/DoubleLabyrinth/SdoKeyCrypt-sys-local-privilege-elevation
