CVE-2026-56432
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-11-10
Modified: 2026-11-13
First seen: 2026-11-10
Status: active
Attack Surface
Low Complexity
No Interaction
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
High
UI:
None
S:
X
AT:
None
VC:
None
VI:
High
VA:
None
Description
Unintended proxy or intermediary ('confused deputy') in the MigTD signing 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 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 (none), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.
Weakness Classification (1)
Affected Software (3)
| Vendor | Product | Version |
|---|---|---|
| n/a | Intel(R) TDX Migration Trust Domain (MigTD) | See references |
| n/a | Intel(R) TDX Migration Trust Domain (MigTD) | See references |
| n/a | Intel(R) TDX Migration Trust Domain (MigTD) | See references |