New GPUThor Rowhammer Defeats ECC on NVIDIA RTX A6000 to Gain Host Root Access

Academic researchers have disclosed a Rowhammer attack impacting NVIDIA workstation GPUs with GDDR6 memory that defeats error correction codes ECC, the mitigation NVIDIA recommends against GPU Rowhammer, and enables denial-of-service DoS and privilege escalation to a root shell. Dubbed GPUThor ,...

Security Notice: NVIDIA Rowhammer - August 2026

NVIDIA has released updated guidance regarding Rowhammer mitigations for NVIDIA GPU and SoC products. NVIDIA recommends a defense-in-depth posture, including enabling SYS-ECC and host IOMMU / DMA isolation. See details below. Go to NVIDIA Product Security. Details NVIDIA received follow-on resear...

GPUHammer: New RowHammer Attack Variant Degrades AI Models on NVIDIA GPUs

NVIDIA is urging customers to enable System-level Error Correction Codes ECC as a defense against a variant of a RowHammer attack demonstrated against its graphics processing units GPUs. "Risk of successful exploitation from RowHammer attacks varies based on DRAM device, platform, design...

Security Notice: Rowhammer - July 2025

NVIDIA has released this security notice in response to customer inquiries about potential impacts to NVIDIA GPUs from Rowhammer attacks. Go to NVIDIA Product Security. Details NVIDIA has received new research related to the industry-wide DRAM issue known as “Rowhammer”. The research demonstrates...