Researchers found that despite updates, modern AMD and Intel CPUs remain vulnerable to speculative execution attacks, indicating ongoing security challenges in processor design.
The study indicates that even with mitigations like the Indirect Branch Predictor Barrier in place, sophisticated attacks can still undermine CPU security protocols.
Intel's IBPB mechanism is designed to prevent execution control by past software, yet vulnerabilities persist, suggesting that newer processors may still be at risk of exploitation.
The findings underscore the importance of continual assessment and improvement of CPU security measures, as improper handling of speculative execution can lead to significant information leaks.
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