CVE-2023-20548 - Vulnerability Details - OpenCVE

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.

Attack Vector Local

Attack Complexity High

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact High

Subsequent System Availability Impact Low

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

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References

Link	Providers
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6024.html

History

Wed, 11 Feb 2026 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 11 Feb 2026 15:00:00 +0000

Type	Values Removed	Values Added
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.
Weaknesses		CWE-367
References		https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6024.html
Metrics		cvssV4_0 `{'score': 7.1, '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'}`

MITRE

Status: PUBLISHED

Assigner: AMD

Published: 2026-02-11T14:35:16.063Z

Updated: 2026-02-11T15:42:32.097Z

Reserved: 2022-10-27T18:53:39.744Z

Link: CVE-2023-20548

Vulnrichment

Updated: 2026-02-11T15:36:37.006Z

NVD

Status : Awaiting Analysis

Published: 2026-02-11T15:16:11.337

Modified: 2026-02-11T15:27:26.370

Link: CVE-2023-20548

Redhat

No data.

OpenCVE Enrichment

No data.

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