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highbug_reportVulnerabilityNew Spectre v2 BTR variant leaks Linux root hashes in 3-5 minutes on Intel
Intel, AMD, and Arm CPUs with indirect branch prediction. Confirmed exploitable on Linux kernel cBPF (default and constant blinding configurations). Firefox SpiderMonkey and Oracle GraalVM also affected but full exploits not demonstrated.
criticalbug_reportVulnerabilityDDRop hardware attack breaks Intel TDX and AMD SEV-SNP memory protection
Intel TDX, Intel Scalable SGX, and AMD SEV-SNP confidential computing technologies used in cloud platforms (AWS, Azure, Google Cloud). Requires DDR5 memory systems. Intel Client SGX and NVIDIA confidential GPUs are not affected.
highbug_reportVulnerabilityInterrupt injection bypasses Spectre v2 defenses on Intel, AMD CPUs
Intel CPUs (Cascade Lake Refresh, Arrow Lake) and AMD Zen 1-4 processors running Linux. AMD Safe-RET mitigation vulnerable; Intel eIBRS/BHI defenses also affected. Requires local code execution on shared Linux systems.
highbug_reportVulnerability16-year-old Linux kernel flaw enables VM escape on Intel and AMD hosts
Linux kernel (specific versions not disclosed); affects virtualization environments on Intel and AMD processors. VM escape vulnerability impacts hypervisors relying on affected kernel versions.
criticalbug_reportVulnerability16-year KVM hypervisor flaw enables guest-to-host kernel corruption
Linux KVM hypervisor on Intel and AMD x86 systems. All Linux kernel versions containing the vulnerable shadow MMU code (approximately 16 years of releases).