CVE-2025-31936
Intel Xeon 6 Processors with Intel TDX Improper Handling of Overlap Between Protected Memory Ranges in SMM Leading to Privilege Escalation
Record summary
CVE-2025-31936 has a selected CVSS score of 7.0 (high).
Description
Improper handling of overlap between protected memory ranges for some Intel(R) Xeon(R) 6 processors when using Intel(R) TDX within SMM may allow an escalation of privilege. SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. 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 (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
Exploitation context
CISA SSVC decision
CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 12, 2026 · Source: CVE List
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
Intel(R) Xeon(R) 6 processors when using Intel(R) TDXDefault status: unaffected | CVE List | See references | affected |