HIGHCVSS v4 8.2Vulnerability

CVE-2026-56432

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.

Properties

Severity
HIGH
Nvd fetched at
2026-11-10T23:33:48.924589+00:00
Cvss severity
HIGH
Cvss score
8.2
Retrieved at
2026-11-10T23:34:23+00:00
Score
8.2
Cvss version
4.0
Last source
NVD
Cve id
CVE-2026-56432
Cvss vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/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
First seen by Signal
2026-11-10T19:28:56+00:00
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/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
Published at
2026-11-10T18:17:41.230
Last modified
2026-11-10T22:06:57.400

Related Entities (1)

HAS_WEAKNESS (1)

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CVE-2026-56432 (CVSS v4 8.2) — Ninja Signal Threat Intelligence | Ninja Signal