The vmware-vga driver (hw/display/vmware_vga.c) in QEMU allows local guest users to write to qemu memory locations and gain privileges via unspecified parameters related to rectangle handling.
Exploitability
AV:LAC:LAu:NImpact
C:CI:CA:C7.2/AV:L/AC:L/Au:N/C:C/I:C/A:C