Medium severity · published Aug 11, 2026
CVE-2025-31936
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
5.7
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack vector
Local
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
X6
Xeon 6337p Firmware · Intel
All versions, or not specified · source: NVD
X6
Xeon 6349p Firmware · Intel
All versions, or not specified · source: NVD
X6
Xeon 6353p Firmware · Intel
All versions, or not specified · source: NVD
X6
Xeon 6357p Firmware · Intel
All versions, or not specified · source: NVD
X6
Xeon 6369p Firmware · Intel
All versions, or not specified · source: NVD
X6
Xeon 6377p Firmware · Intel
All versions, or not specified · source: NVD
X6
Xeon 6503p Firmware · Intel
All versions, or not specified · source: NVD
X6
Xeon 6503p-b Firmware · Intel
All versions, or not specified · source: NVD
X6
Xeon 6505p Firmware · Intel
All versions, or not specified · source: NVD
X6
Xeon 6507p Firmware · Intel
All versions, or not specified · source: NVD
X6
Xeon 6511p Firmware · Intel
All versions, or not specified · source: NVD