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

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2021-26396

Severity CVSS v4.0:
Pending analysis
Type:
CWE-345 Insufficient Verification of Data Authenticity
Publication date:
11/01/2023
Last modified:
09/04/2025

Description

Insufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest.<br /> <br />

Impact

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

Base Score: 4.40 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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

Base Score 3.x
4.40
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:amd:epyc_7003_firmware:*:*:*:*:*:*:*:* milanpi-sp3_1.0.0.9 (excluding)
cpe:2.3:h:amd:epyc_7003:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:* milanpi-sp3_1.0.0.9 (excluding)
cpe:2.3:h:amd:epyc_72f3:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:* milanpi-sp3_1.0.0.9 (excluding)
cpe:2.3:h:amd:epyc_7313:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:* milanpi-sp3_1.0.0.9 (excluding)
cpe:2.3:h:amd:epyc_7313p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:* milanpi-sp3_1.0.0.9 (excluding)
cpe:2.3:h:amd:epyc_7343:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:* milanpi-sp3_1.0.0.9 (excluding)
cpe:2.3:h:amd:epyc_7373x:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:* milanpi-sp3_1.0.0.9 (excluding)
cpe:2.3:h:amd:epyc_73f3:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:* milanpi-sp3_1.0.0.9 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools