Intel TDX Migration Trust Domain MigTD servtd_get_quote buffer overflow

Summaryinfo

A vulnerability identified as problematic has been detected in Intel TDX Migration Trust Domain. The affected element is the function servtd_get_quote of the component MigTD. The manipulation leads to buffer overflow. This vulnerability is uniquely identified as CVE-2026-61383. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Intel TDX Migration Trust Domain (affected version not known) and classified as problematic. This issue affects the function servtd_get_quote of the component MigTD. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer. Impacted is availability. The summary by CVE is:

Incorrect calculation of buffer size in the MigTD's servtd_get_quote 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 high 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 (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

It is possible to read the advisory at intel.com. The identification of this vulnerability is CVE-2026-61383 since 07/16/2026. The exploitation is known to be easy. Attacking locally is a requirement. Additional levels of successful authentication are required for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (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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