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    CVE-2021-46747

    Insufficient granularity of access control in ASP (AMD Secure Processor) may allow an attacker with an untrusted user space application to map sensitive SMN (System Management Network) apertures leading to a potential escalation of privileges.

    Published:Jun 1, 2026
    Last Modified:Jun 2, 2026
    EPS:Jun 1, 2026
    EPSS Score:0.00012
    CVSS Score:7.1

    Affected Products

    Vendor
    Amd
    Product
    Athlon 3000 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Radeon Pro V520
    Vendor
    Amd
    Product
    Radeon Pro V620
    Vendor
    Amd
    Product
    Radeon Pro W5000 Series
    Vendor
    Amd
    Product
    Radeon Pro W6000 Series
    Vendor
    Amd
    Product
    Radeon Pro W7000 Series
    Vendor
    Amd
    Product
    Radeon Rx 5000 Series
    Vendor
    Amd
    Product
    Radeon Rx 6000 Series
    Vendor
    Amd
    Product
    Radeon Rx 7000 Series
    Vendor
    Amd
    Product
    Ryzen 3000 Series Desktop Processors
    Vendor
    Amd
    Product
    Ryzen 3000 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 4000 Series Desktop Processors
    Vendor
    Amd
    Product
    Ryzen 4000 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 5000 Series Desktop Processors
    Vendor
    Amd
    Product
    Ryzen 5000 Series Desktop Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 5000 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen 7030 Series Mobile Processors With Radeon Graphics
    Vendor
    Amd
    Product
    Ryzen Embedded 5000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded R1000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded R2000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded V1000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded V2000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Embedded V3000 Series Processors
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 3000 Wx-series Processors
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5000 Wx-series Processors

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2021-26380 (CVSS 1.8) — A compromised Trusted OS (TOS) driver could issue a malformed call that could potentially allow memory access…
    CVE-2024-21962 (CVSS 8.6) — Improper Input Validation in the AMD RAID driver could allow an attacker to point to an arbitrary memory locat…
    CVE-2025-29944 (CVSS 6.8) — A buffer overflow vulnerability within AMD Sensor Fusion Hub Driver can allow a local attacker to write out of…
    CVE-2025-54502 (CVSS 7.1) — Incorrect use of boot service in the AMD Platform Configuration Blob (APCB) SMM driver could allow a privilege…
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    CVE-2025-52533 (CVSS 8.7) — Improper Access Control in an on-chip debug interface could allow a privileged attacker to enable a debug inte…
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    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