Heap-based buffer overflow in the tvtumin.sys kernel driver in Lenovo Rescue and Recovery 4.20, including 4.20.0511 and 4.20.0512, allows local users to execute arbitrary code via a long file name.
Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.