New VMScape Spectre-BTI Attack Targets Isolation Flaws in AMD and Intel CPUs

Cybersecurity researchers at ETH Zurich have disclosed a critical new Spectre-based attack called VMSCAPE that exploits incomplete branch predictor isolation in virtualized cloud environments. The attack, tracked as CVE-2025-40300, affects multiple generations of AMD and Intel processors and enables malicious virtual machines to steal sensitive data from hypervisor processes. Attack Methodology and Impact VMSCAPE represents the first practical […]

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