Intel TDX Migration Trust Domain MigTD GetQuote infinite loop

Summaryinfo

A vulnerability, which was classified as critical, was found in Intel TDX Migration Trust Domain. Affected is the function GetQuote of the component MigTD. Executing a manipulation can lead to infinite loop. This vulnerability is registered as CVE-2026-55709. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability was found in Intel TDX Migration Trust Domain (affected version not known). It has been declared as critical. This vulnerability affects the function GetQuote of the component MigTD. The manipulation with an unknown input leads to a infinite loop vulnerability. The CWE definition for the vulnerability is CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. As an impact it is known to affect availability. CVE summarizes:

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.

The advisory is shared for download at intel.com. This vulnerability was named CVE-2026-55709 since 07/16/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/10/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Intel

Name

• TDX Migration Trust Domain

License

• commercial

Website

• Vendor: https://www.intel.com/

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