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    CVE-2023-20548

    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.

    Published:Feb 11, 2026
    Last Modified:Mar 5, 2026
    EPS:Feb 11, 2026
    EPSS Score:0.00017
    CVSS Score:7.8

    Affected Products

    Vendor
    Amd
    Product
    Instinct Mi210
    Vendor
    Amd
    Product
    Instinct Mi250
    Vendor
    Amd
    Product
    Instinct Mi300a
    Vendor
    Amd
    Product
    Instinct Mi300x
    Vendor
    Amd
    Product
    Radeon Pro Vii
    Vendor
    Amd
    Product
    Radeon Pro Vii Firmware
    Vendor
    Amd
    Product
    Radeon Pro W5000 Series
    Vendor
    Amd
    Product
    Radeon Pro W5500
    Vendor
    Amd
    Product
    Radeon Pro W5500x
    Vendor
    Amd
    Product
    Radeon Pro W5700
    Vendor
    Amd
    Product
    Radeon Pro W5700x
    Vendor
    Amd
    Product
    Radeon Rx 5000 Series
    Vendor
    Amd
    Product
    Radeon Rx 5300
    Vendor
    Amd
    Product
    Radeon Rx 5300 Xt
    Vendor
    Amd
    Product
    Radeon Rx 5300m
    Vendor
    Amd
    Product
    Radeon Rx 5500
    Vendor
    Amd
    Product
    Radeon Rx 5500 Xt
    Vendor
    Amd
    Product
    Radeon Rx 5500m
    Vendor
    Amd
    Product
    Radeon Rx 5600
    Vendor
    Amd
    Product
    Radeon Rx 5600 Xt
    Vendor
    Amd
    Product
    Radeon Rx 5600m
    Vendor
    Amd
    Product
    Radeon Rx 5700
    Vendor
    Amd
    Product
    Radeon Rx 5700 Xt
    Vendor
    Amd
    Product
    Radeon Rx 5700m
    Vendor
    Amd
    Product
    Radeon Software
    Vendor
    Amd
    Product
    Radeon Vii
    Vendor
    Amd
    Product
    Radeon Vii Firmware
    Vendor
    Amd
    Product
    Rocm

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2023-31317 (CVSS 8.8) — Improper restriction of operations within the bounds of a memory buffer in the AMD secure processer (ASP) coul…
    CVE-2025-54511 (CVSS 5.3) — Improper handling of insufficient privileges in the AMD Secure Processor (ASP) could allow an attacker to prov…
    CVE-2025-54517 (CVSS 8.5) — Out of bounds write in AMD AMDGV_CMD_GET_DIAG_DATA ioctl handler could allow a local user to escalate privileg…
    CVE-2025-66660 (CVSS 1.8) — Insufficient parameter sanitization in TEE SOC Driver could allow an attacker to issue a malformed DRV_SOC_CMD…
    CVE-2025-66664 (CVSS 4.6) — Insufficient parameter sanitization in AMD Secure Processor (ASP) TEE SOC Driver could allow an attacker to is…
    CVE-2023-31316 (CVSS 7.1) — Improperly preserved integrity of hardware configuration state during a power save/restore operation in the AM…
    CVE-2022-23826 (CVSS 1.8) — A TOCTOU (Time-Of-Check to Time-Of-Use) in the graphics interface may allow an attacker to load registers repe…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High