Intel Xeon 6 Scalable processors TDX access control

Summaryinfo

A vulnerability was found in Intel Xeon 6 Scalable processors. It has been rated as problematic. Affected by this issue is some unknown functionality of the component TDX. This manipulation causes access control. This vulnerability appears as CVE-2025-31938. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability was found in Intel Xeon 6 Scalable processors (version unknown). It has been declared as problematic. Affected by this vulnerability is an unknown function of the component TDX. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality. The summary by CVE is:

Insufficient granularity of access control in some subsystem for some Intel(R) Xeon(R) 6 Scalable processors with Intel(R) TDX may allow an information disclosure. Authorized adversary with an authenticated user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.

The advisory is shared at intel.com. This vulnerability is known as CVE-2025-31938 since 04/15/2025. The exploitation appears to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/11/2026). 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

Type

• Chip Software

Vendor

• Intel

Name

• Xeon 6 Scalable processors

License

• commercial

Website

• Vendor: https://www.intel.com/

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