This vulnerability has been classified as high risk by NVIDIA.
This concerns users of these NVIDIA videocards: Geforce 8 or newer, G80 Quadro or newer, and all Tesla GPUs. And run applications that perform GLX direct rendering, or use the GPU to run computations through APIs like CUDA or OpenCL!
Extracts taken from original NVIDIA Support:
Security vulnerability CVE-2012-0946 in the NVIDIA UNIX driver (http://nvidia.custhelp.com/app/answers/detail/a_id/3109)
Just in case you may not have come across this warning.
Pretty low priority issue.