Researchers have developed novel Rowhammer attacks that exploit vulnerabilities in Nvidia's high-performance GPUs, allowing attackers to gain complete root control over host machines. These attacks leverage bit flips in GDDR memory to bypass security protections, posing significant risks to cloud environments where GPUs are shared among multiple users. This represents a major escalation in Rowhammer capabilities, moving from CPUs to GPUs with far greater impact.
Background
Rowhammer is a hardware vulnerability where repeated memory access causes bit flips in DRAM, first demonstrated in 2014. Previous attacks focused primarily on CPU memory systems with limited impact on GPU environments.
- Source
- Ars Technica
- Published
- Apr 3, 2026 at 01:00 AM
- Score
- 9.0 / 10