CVE-2026-57893 · Infrastructure
NO FIX YET
The Intel TDX Migration Trust Domain (MigTD) SPDM responder does not correctly distinguish its internal state, which can let a hypervisor or a privileged system-software attacker escalate privilege and corrupt data. The attack needs adjacent access and a privileged user, and the sources describe high integrity impact with no confidentiality or availability impact.
first public Nov 10, 2026 · 1 source
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No product ranges from the sources yet.
Who cares confidential-computing, hypervisor, intel-tdx
Unknown from the sources.
No fix yet, per the sources.
Incomplete internal state distinction in the MigTD's SPDM responder for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable data corruption. This result may potentially occur via adjacent access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
This page as .md · .json · CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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