CVE-2025-31938

Intel Xeon TDX Subsystem Access Control Weakness Leading to Potential Information Disclosure

Published Aug 11, 2026 CVSS 4.0 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Intel
Intel xeon
Vendors & Products Intel
Intel xeon
Type Values Removed Values Added
Title Intel Xeon TDX Subsystem Access Control Weakness Leading to Potential Information Disclosure
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Weaknesses CWE-1220
References
Metrics cvssV4_0

{'score': 4.3, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
intel
Published
Updated
Aug 12, 2026, 1:39 PM
Reserved
Apr 15, 2025, 9:18 PM
Status
Awaiting Analysis
Published
Aug 11, 2026, 5:17 PM
Modified
Sep 29, 2026, 11:10 AM