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Critical SEV-SNP Vulnerability in AMD Zen 1 Processors Identified

Critical SEV-SNP Vulnerability in AMD Zen 1 Processors Identified

First seen 25 Jan 2026, 21:53 UTC

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ThreatCluster AI
ThreatCluster March 12, 2026 at 13:27 UTC

The StackWarp vulnerability (CVE-2025-29943) affects AMD Zen 1–5 processors utilizing Secure Encrypted Virtualization – Secure Nested Paging (SEV-SNP). This critical hardware flaw allows a privileged attacker to manipulate the stack pointer of a guest virtual machine, posing risks to confidential computing environments.

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