๐ง NVIDIA GPU attack bypasses ECC security
A new hardware attack called GPUThor can overwhelm ECC protections on NVIDIA workstation GPUs. Researchers at the University of Toronto developed this technique targeting GDDR6 memory on various professional GPUs. In tests on four Ampere-generation GPUs, the attack led to root shell access on the host system. This bypasses the SECDED scheme by causing numerous bit flips within protected memory blocks. NVIDIA received the disclosure on April 29, 2026, with guidance issued on August 25, 2026. ๐ง