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    CVE-2021-26334

    The AMDPowerProfiler.sys driver of AMD μProf tool may allow lower privileged users to access MSRs in kernel which may lead to privilege escalation and ring-0 code execution by the lower privileged user.

    Published:Dec 1, 2021
    Last Modified:Nov 21, 2024
    EPS:Dec 1, 2021
    EPSS Score:0.00508
    CVSS Score:9.9

    Affected Products

    Vendor
    Amd
    Product
    Amd Uprof
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Microsoft
    Product
    Windows

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-284 Improper Access Control

    Related CVEs

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    CVE-2026-28237 (CVSS 6.8) — Unrestricted resource allocation in AMD uProf may be exploitable to consume excessive system resources, potent…
    CVE-2026-0466 (CVSS 6.8) — Improper access control in AMD uProf may allow a local attacker with user privileges to write to the kernel-sh…
    CVE-2025-61969 (CVSS 7) — Incorrect permission assignment in AMD µProf may allow a local user-privileged attacker to achieve privilege e…
    CVE-2023-31349 (CVSS 7.3) — Incorrect default permissions in the AMD μProf installation directory could allow an attacker to achieve privi…
    CVE-2023-31341 (CVSS 7.3) — Insufficient validation of the Input Output Control (IOCTL) input buffer in AMD μProf may allow an authenticat…
    CVE-2023-20561 (CVSS 5.5) — Insufficient validation of the IOCTL (Input Output Control) input buffer in AMD μProf may allow an auth…
    CVE-2023-20556 (CVSS 5.5) — Insufficient validation of the IOCTL (Input Output Control) input buffer in AMD μProf may allow an authen…
    CVE-2023-20562 (CVSS 7.8) — Insufficient validation in the IOCTL (Input Output Control) input buffer in AMD uProf may allow an authenti…
    CVE-2022-23831 (CVSS 7.5) — Insufficient validation of the IOCTL input buffer in AMD μProf may allow an attacker to send an arbitrary buff…

    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