INTEL TDX MIGRATION TD (MIGTD) REFERENCE SOFTWARE · CVE-2026-62929 · Infrastructure
FIX → 0.7.2 ✓ verified
The virtio-vsock implementation in Intel's TDX Migration Trust Domain (MigTD) dereferences an expired pointer. A privileged system-software attacker on the host can escalate privilege and read or change data inside the trust domain.
first public Nov 10, 2026 · 2 sources
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Teams running Intel TDX confidential VMs with live migration, using the MigTD reference software before version 0.7.2. The flaw is in MigTD's virtio-vsock code and needs a privileged attacker on the host (system software, local access). Hosts and clouds not using TDX migration can skip it.
Not affected if no-td-migration, no-tdx
Who cares confidential-computing, intel-tdx, virtualization
0.7.2 is affected per INTEL-SA-01580v0.7.2 or laterUpgrade to 0.7.2
Expired pointer dereference in the MigTD's virtio-vsock implementation for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow an escalation of privilege and information disclosure. System software adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
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Update Intel TDX Migration TD (MigTD) reference software to v0.7.2 or later (https://github.com/intel/MigTD/releases/tag/v0.7.2).
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