New GPUBreach Attack Enables System Takeover via GPU Rowhammer

A new attack named GPUBreach exploits Rowhammer bit-flips in GPU GDDR6 memory to escalate privileges and achieve full system compromise. The technique targets GPU memory rather than traditional DRAM, expanding the attack surface of Rowhammer-based exploits. No specific CVE IDs, affected vendors, or mitigation timelines were disclosed in the report. The attack demonstrates the potential for hardware-level vulnerabilities in GPUs to enable system takeover. Technical details on the exact exploitation method or affected GPU models remain limited. The discovery highlights emerging risks in GPU memory integrity.