Researchers from ETH Zurich have exposed a new vulnerability related to Intel's processor architecture called Branch Predictor Race Conditions (BPRC). This issue can manipulate branch predictorsâmechanisms in processors that predict execution pathsâleading to potential data leaks even after Intel's security measures were implemented. The researchers aim to present their findings at the USENIX Security 2025 and Black Hat USA 2025 conferences. They highlighted the risks associated with race conditions occurring during mode switching, which could result in significant security breaches despite efforts to mitigate Spectre-related threats.
Researchers have identified a critical new flaw in Intel's processors called Branch Predictor Race Conditions (BPRC), which could further exploit existing Spectre vulnerabilities.
This discovery indicates that even with Intel's security measures against Spectre, attackers could still manipulate branch predictors to leak sensitive information across security boundaries.
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