Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-21096

Severity CVSS v4.0:
LOW
Type:
CWE-119 Buffer Errors
Publication date:
12/08/2025
Last modified:
13/08/2025

Description

Improper buffer restrictions in the firmware for some Intel(R) TDX may allow a privileged user to potentially enable escalation of privilege via local access.

Impact

Vector 4.0
CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS v4.0 Severity and Metrics:

Base Score: 2.00 LOW
Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Attack Vector (AV): Local
Attack Complexity (AC): High
Attack Requirements (AT): None
Privileges Required (PR): High
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): Low
Availability (VA): None
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0
2.00
Severity 4.0
LOW
Vector 3.x
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 1.90 LOW
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x
1.90
Severity 3.x
LOW

References to Advisories, Solutions, and Tools