Key Findings New RowHammer attack called GPUBreach exploits GDDR6 memory bit-flips in NVIDIA GPUs to achieve full CPU privilege escalation and system compromise Attack corrupts GPU page tables to grant arbitrary GPU memory read/write access to unprivileged processes Uniquely bypasses IOMMU protections without requiring them to be disabled, unlike competing attacks Researchers demonstrated the exploit on NVIDIA RTX A6000 GPU, spawning a root shell on the host system Current mi