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MEDIUM Vulnerabilities Microsoft Security Response Center

CVE-2026-31593 KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPU

cve-2026-31593kvmsev
  • What: A vulnerability in KVM's SEV feature that allows syncing VMSA of already-launched vCPUs
  • Impact: Could lead to unauthorized memory encryption operations
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