7.0
HIGH
CVSS 4.0
CVE-2025-31936
Intel Xeon Processor TDX SMM Privilege Escalation Vulnerability
Overview
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.
Details
INFO
Published Date :
Aug. 11, 2026, 5:17 p.m.
Last Modified :
Sept. 29, 2026, 11:10 a.m.
Remotely Exploit :
No
Source :
[email protected]
Impact
Affected Products
The following products are affected by CVE-2025-31936
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | 6dda929c-bb53-4a77-a76d-48e79601a1ce | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
Update Intel(R) TDX firmware to patch memory corruption vulnerabilities.
- Update Intel(R) TDX firmware to the latest version.
- Apply relevant security patches from Intel.
- Review Intel TDX documentation for mitigation steps.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-31936.
| URL | Resource |
|---|---|
| https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01379.html | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-31936 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-31936
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-31936 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-31936 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Sep. 29, 2026
Action Type Old Value New Value Added Translation Title: Improper handling of overlap between protected memory ranges for some Intel(R) Xeon(R) 6 processors when..., Description: Manejo inadecuado de la superposición entre rangos de memoria protegida para algunos procesadores Intel(R) Xeon(R) 6 al usar Intel(R) TDX dentro de SMM puede permitir una escalada de privilegios. Un adversario de SMM con un usuario privilegiado combinado con un ataque de alta complejidad puede habilitar la escalada de privilegios. Este resultado puede ocurrir potencialmente a través de acceso local cuando los requisitos de ataque están presentes con conocimiento interno especial y no requiere interacción del usuario. La potencial vulnerabilidad puede impactar la confidencialidad (alta), integridad (alta) y disponibilidad (ninguna) del sistema vulnerable, resultando en impactos subsiguientes en la confidencialidad (ninguna), integridad (ninguna) y disponibilidad (ninguna) del sistema. -
Initial Analysis by [email protected]
Sep. 18, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6337p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6337p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6349p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6349p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6353p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6353p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6357p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6357p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6369p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6369p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6377p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6377p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6503p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6503p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6503p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6503p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6505p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6505p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6507p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6507p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6511p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6511p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6513p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6513p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6515p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6515p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6516p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6516p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6517p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6517p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6518p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6518p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6520p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6520p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6521p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6521p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6523p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6523p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6527p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6527p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6530p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6530p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6532p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6532p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6533p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6533p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6543p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6543p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6544p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6544p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6546p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6546p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6548p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6548p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6553p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6553p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6556p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6556p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6563p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6563p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6706p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6706p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6714p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6714p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6716p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6716p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6718p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6718p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6724p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6724p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6725p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6725p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6726p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6726p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6728p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6728p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6730p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6730p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6731p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6731p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6732p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6732p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6736p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6736p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6737p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6737p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6738p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6738p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6740p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6740p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6741p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6741p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6745p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6745p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6747p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6747p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6748p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6748p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6756p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6756p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6760p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6760p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6761p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6761p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6766p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6766p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6767p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6767p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6768p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6768p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6768p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6768p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6774p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6774p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6776p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6776p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6776p-b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6776p-b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6781p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6781p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6787p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6787p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6788p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6788p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6944p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6944p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6952p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6952p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6960p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6960p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6962p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6962p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6972p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6972p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6978p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6978p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6979p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6979p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6980p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6980p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6315p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6315p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6325p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6325p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:intel:xeon_6333p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:intel:xeon_6333p:-:*:*:*:*:*:*:* Added Reference Type Intel Corporation: https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01379.html Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 12, 2026
Action Type Old Value New Value Added CWE CWE-1260 Changed SSVC {'id': 'CVE-2025-31936', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-11T00:00:00+00:00'} {'id': 'CVE-2025-31936', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-12T04:00:40.445665Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 12, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-31936', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-11T00:00:00+00:00'} -
New CVE Received by [email protected]
Aug. 11, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'n/a', 'product': 'Intel(R) Xeon(R) 6 processors when using Intel(R) TDX', 'versions': [{'status': 'affected', 'version': 'See references'}], 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V4.0 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 Added CWE CWE-1260 Added Reference https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01379.html
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.