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.
Affected products
intel: xeon 6337p firmware; intel: xeon 6337p; intel: xeon 6349p firmware; intel: xeon 6349p; intel: xeon 6353p firmware; intel: xeon 6353p; intel: xeon 6357p firmware; intel: xeon 6357p; intel: xeon 6369p firmware; intel: xeon 6369p; intel: xeon 6377p firmware; intel: xeon 6377p; intel: xeon 6503p firmware; intel: xeon 6503p; intel: xeon 6503p-b firmware
References1
- intel.com/content/www/us/en/security-center/advisory/intel-sa-0… Vendor Advisory
Metrics
- CVSS 3.1
-
5.7
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N - CVSS 4.0
-
7.0
HIGH
Score source: CNA
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 1 · as of 12 November 2026
- CWE
- CWE-1260
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