---
id: "CVE-2026-55709"
page: "https://infrastack.ai/live/CVE-2026-55709"
kind: "vulnerability"
aliases: ["CVE-2026-55709"]
title: "Intel TDX MigTD GetQuote: infinite loop lets a hypervisor deny service"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["confidential-computing", "hypervisor", "infrastructure", "intel-tdx", "migtd"]
not_affected_if: ["no-intel-tdx", "no-migtd"]
published_at: "2026-11-10T18:17:40+00:00"
first_seen_at: "2026-11-10T18:22:58+00:00"
updated_at: "2026-11-10T18:24:35+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55709", "first_seen_at": "2026-11-10T18:22:58+00:00"}]
exploit_sources: []
---

# Intel TDX MigTD GetQuote: infinite loop lets a hypervisor deny service

Link for people: https://infrastack.ai/live/CVE-2026-55709 (this .md is for agents)

Intel's TDX Migration Trust Domain (MigTD) has a loop in its GetQuote code with no reachable exit condition, so it can hang. A system software adversary running at Ring 0 can cause a denial of service by stalling the component.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-10T18:22:58+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-55709

## From the sources

Loop with unreachable exit condition ('infinite loop') in the MigTD's GetQuote for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow a denial of service. System software adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. 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 (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

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_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_