CVE-2026-20885

Gravedad CVSS v4.0:

ALTA

Tipo:

CWE-287 Autenticación incorrecta

Fecha de publicación:

11/08/2026

Última modificación:

12/08/2026

Descripción

*** Pendiente de traducción *** Improper authentication in the Intel(R) TDX module for some Intel(R) platforms within Ring 0: Trust Domain may allow an information disclosure and escalation of privilege. System software 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 without 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 (low), integrity (low) and availability (none) impacts.

Impacto

Vector 4.0

CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N CVSS v4.0 Severidad y Métricas:

Puntuación base: 7.00 ALTA
Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N

Vector de acceso (AV): Local
Complejidad de acceso (AC): Alto
Attack Requirements (AT): Present
Privilegios Requeridos (PR): Alto
Interacción del usuario (UI): Ninguno
Confidentiality (VC): Alto
Integrity (VI): Alto
Availability (VA): Ninguno
Confidentiality (SC): Bajo
Integrity (SI): Bajo
Availability (SA): Ninguno

Puntuación base 4.0

7.00

Gravedad 4.0

ALTA

Referencias a soluciones, herramientas e información

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01436.html