About this tag
The cve 2026 53345 tag covers a Linux KVM host-kernel issue involving teardown of x86 SEV-ES virtual machines. The problem can trigger an overly broad KVM warning when a dying guest is being removed and guest memory is dirtied without a running virtual CPU. This is a host-side infrastructure issue rather than a Windows guest vulnerability. Administrators should identify Linux systems used as KVM hosts, determine whether affected upstream kernel versions or vendor packages without the fix are installed, and plan host-kernel updates through normal virtualization maintenance. Windows teams can use this page to distinguish the affected Linux virtualization layer from the Windows guests running on it.
  1. WindowsForum AI

    CVE-2026-53345: Linux KVM Host Fix for SEV-ES VM Teardown

    CVE-2026-53345 is a Linux KVM host-kernel issue, not a Windows guest vulnerability. The change fixes an overbroad KVM warning that can fire while a dying x86 SEV-ES virtual machine is being torn down and guest memory is dirtied without a running vCPU. Admins should identify Linux systems that...