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-2023-20548

Severity CVSS v4.0:
HIGH
Type:
Unavailable / Other
Publication date:
11/02/2026
Last modified:
05/03/2026

Description

A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow an attacker to corrupt memory resulting in loss of integrity, confidentiality, or availability.

Impact

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

Base Score: 7.10 HIGH
Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L

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

Base Score 4.0
7.10
Severity 4.0
HIGH
Vector 3.x
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

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

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:amd:rocm:*:*:*:*:*:*:*:* 6.2.0 (excluding)
cpe:2.3:h:amd:instinct_mi210:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:instinct_mi250:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:instinct_mi300a:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:instinct_mi300x:-:*:*:*:*:*:*:*
cpe:2.3:a:amd:radeon_software:*:*:*:*:pro:*:*:* 25.q2 (excluding)
cpe:2.3:h:amd:radeon_pro_w5500:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:radeon_pro_w5500x:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:radeon_pro_w5700:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:radeon_pro_w5700x:-:*:*:*:*:*:*:*
cpe:2.3:a:amd:radeon_software:*:*:*:*:adrenalin:*:*:* 24.6.1 (excluding)
cpe:2.3:h:amd:radeon_rx_5300:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:radeon_rx_5300_xt:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:radeon_rx_5300m:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:radeon_rx_5500:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools