Intel TDX Migration Trust Domain virtio-vsock initialization

Summaryinfo

A vulnerability marked as problematic has been reported in Intel TDX Migration Trust Domain. Affected by this vulnerability is an unknown functionality of the component virtio-vsock. Performing a manipulation results in initialization. This vulnerability was named CVE-2026-63028. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Intel TDX Migration Trust Domain (the affected version is unknown). This affects an unknown code of the component virtio-vsock. The manipulation with an unknown input leads to a initialization vulnerability. CWE is classifying the issue as CWE-665. The product does not initialize or incorrectly initializes a resource. This is going to have an impact on integrity, and availability. The summary by CVE is:

Improper initialization in the MigTD virtio-vsock stream handling 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 data corruption. 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 (low) 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. This vulnerability is uniquely identified as CVE-2026-63028 since 07/17/2026. The exploitability is told to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k 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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Intel

Name

• TDX Migration Trust Domain

License

• commercial

Website

• Vendor: https://www.intel.com/

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion