Intel TDX Migration Trust Domain MigTD privileges management

Summaryinfo

A vulnerability, which was classified as very critical, has been found in Intel TDX Migration Trust Domain. Affected by this issue is some unknown functionality of the component MigTD. The manipulation leads to privileges management. This vulnerability is listed as CVE-2026-61887. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Intel TDX Migration Trust Domain (affected version unknown). This issue affects an unknown functionality of the component MigTD. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Missing critical step in authentication in the MigTD SPDM rebind implementation for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow an escalation of privilege and information disclosure. Network adversary with an unauthenticated user combined with a low complexity attack may enable remote code execution. This result may potentially occur via adjacent access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (high) impacts.

The advisory is shared at intel.com. The identification of this vulnerability is CVE-2026-61887 since 07/15/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/10/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

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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