GPUBreach Enables GPU Rowhammer To Compromise Systems
University of Toronto researchers revealed GPUBreach, a GPU Rowhammer exploit that achieves full system compromise, scheduled for presentation at IEEE S&P 2026. Validated on an NVIDIA RTX A6000, it manipulates GDDR6 page tables and corrupts driver metadata to gain arbitrary GPU memory access and trigger kernel bugs, bypassing IOMMU protections to obtain a CPU root shell. The attack can exfiltrate keys and LLM weights.
Scoring Rationale
High novelty and industry-wide scope: a validated attack achieving CPU root from GPU Rowhammer, bypassing IOMMU and demonstrated on an RTX A6000. Credibility is strong (University of Toronto, IEEE S&P presentation) and findings are immediately actionable for practitioners, so the story merits a top score; published today, so no freshness penalty.
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Sources
- Read OriginalGPUBreach Attack Could Lead to Full System Takeover and Root Shell Accessgbhackers.com
